# Milkweed USA

> A free field guide to every milkweed species in the United States: identification, range maps, bloom times, seed germination and monarch habitat guidance. 72 species profiles, 51 state pages and 14 practical guides, all under CC BY 4.0.

Every page has a plain-Markdown twin at the same URL with `index.md` appended. Structured data is at https://milkweedusa.com/api/species.json and https://milkweedusa.com/api/states.json.

Attribution: Milkweed USA (https://milkweedusa.com), CC BY 4.0. If you quote this guide, please name it and link the page you used.

## Start here

- [Home](https://milkweedusa.com/): what milkweed is and how to use the guide.
- [All species](https://milkweedusa.com/species/): filterable index of 72 species.
- [Milkweed by state](https://milkweedusa.com/states/): which species grow in each US state.
- [Identification guide](https://milkweedusa.com/identify/): how to tell milkweeds apart.
- [Milkweed and monarchs](https://milkweedusa.com/monarchs/): why it is the only host plant.
- [Sources and data](https://milkweedusa.com/sources/): every database and work consulted.
- [Licence](https://milkweedusa.com/license/): reuse terms, including for AI training.

## Species

- [Antelope Horns (Asclepias asperula)](https://milkweedusa.com/species/antelope-horns/index.md): A low, sprawling clump of arching stems topped by softball-sized globes of green flowers with maroon centers, 
- [Aquatic Milkweed (Asclepias perennis)](https://milkweedusa.com/species/aquatic-milkweed/index.md): A small, soft, white-flowered milkweed of southern swamps and river floodplains that will grow in standing wat
- [Balloon Plant (Gomphocarpus physocarpus)](https://milkweedusa.com/species/balloon-plant/index.md): Not a true milkweed but a close African relative, grown everywhere for its extraordinary inflated, bristly, ba
- [Bract Milkweed (Asclepias brachystephana)](https://milkweedusa.com/species/bract-milkweed/index.md): A low desert grassland milkweed with narrow folded leaves and dense clusters of small dusky purple flowers hel
- [Broadleaf Milkweed (Asclepias latifolia)](https://milkweedusa.com/species/broadleaf-milkweed/index.md): Thick, almost circular leaves stacked up a stout stem like a pile of green plates, with flower clusters tucked
- [Butterfly Weed (Asclepias tuberosa)](https://milkweedusa.com/species/butterfly-weed/index.md): The one milkweed almost everyone recognizes: flat-topped clusters of brilliant orange flowers on a stiff, hair
- [California Milkweed (Asclepias californica)](https://milkweedusa.com/species/california-milkweed/index.md): A gorgeous, entirely white-woolly California endemic whose deep wine-red flowers hang in heavy nodding cluster
- [Carolina Milkweed (Asclepias cinerea)](https://milkweedusa.com/species/carolina-milkweed/index.md): A wiry, thread-leaved coastal plain milkweed carrying a few widely spaced, unusually elegant ash-mauve flowers
- [Clasping Milkweed (Asclepias amplexicaulis)](https://milkweedusa.com/species/clasping-milkweed/index.md): Unmistakable once you have seen it: wavy-edged blue-green leaves clasping directly around the stem, and a sing
- [Common Milkweed (Asclepias syriaca)](https://milkweedusa.com/species/common-milkweed/index.md): The species that feeds the eastern monarch migration. Big paddle-shaped leaves, thick stems and heavy, droopin
- [Curtiss’ Milkweed (Asclepias curtissii)](https://milkweedusa.com/species/curtiss-milkweed/index.md): A Florida scrub endemic listed as endangered by the state, with wavy-edged pale leaves and greenish-white flow
- [Desert Milkweed (Asclepias erosa)](https://milkweedusa.com/species/desert-milkweed/index.md): A big, pale, upright milkweed of the Mojave and Sonoran deserts, with chalky white stems, thick cream-edged le
- [Dwarf Milkweed (Asclepias involucrata)](https://milkweedusa.com/species/dwarf-milkweed/index.md): A tiny, ground-hugging desert milkweed with wavy narrow leaves and pale green flowers held almost at soil leve
- [Eastwood’s Milkweed (Asclepias eastwoodiana)](https://milkweedusa.com/species/eastwoods-milkweed/index.md): A Nevada endemic of barren volcanic gravel and clay flats in the central Great Basin, forming low gray-green t
- [Emory’s Milkweed (Asclepias emoryi)](https://milkweedusa.com/species/emorys-milkweed/index.md): A low, wiry Chihuahuan Desert milkweed of gypsum and caliche flats in west Texas and southern New Mexico, flow
- [Engelmann’s Milkweed (Asclepias engelmanniana)](https://milkweedusa.com/species/engelmanns-milkweed/index.md): A tall, sparse, almost skeletal prairie milkweed with long drooping linear leaves and small greenish-yellow fl
- [Feay’s Milkweed (Asclepias feayi)](https://milkweedusa.com/species/feays-milkweed/index.md): A Florida endemic of pine flatwoods and sandhill with hair-fine leaves and delicate white flowers flushed pink
- [Fewflower Milkweed (Asclepias lanceolata)](https://milkweedusa.com/species/fewflower-milkweed/index.md): A tall, sparse, brilliant orange-red milkweed of coastal marsh and wet savanna. Imagine butterfly weed stretch
- [Fourleaf Milkweed (Asclepias quadrifolia)](https://milkweedusa.com/species/fourleaf-milkweed/index.md): A delicate spring milkweed of dry oak woodland: a slim stem carrying one whorl of four broad leaves at mid-hei
- [Giant Milkweed (Calotropis procera)](https://milkweedusa.com/species/giant-milkweed/index.md): A large shrub or small tree from Africa and Asia, naturalised in the warmest parts of the United States. Its h
- [Green Antelopehorn (Asclepias viridis)](https://milkweedusa.com/species/green-antelopehorn/index.md): The workhorse of the south-central states: sprawling stems, broad wavy leaves and big open clusters of pale gr
- [Green Comet Milkweed (Asclepias viridiflora)](https://milkweedusa.com/species/green-comet-milkweed/index.md): A subtle, wide-ranging prairie milkweed with tight ball-shaped clusters of purely green flowers pressed agains
- [Hall’s Milkweed (Asclepias hallii)](https://milkweedusa.com/species/halls-milkweed/index.md): A handsome southern Rocky Mountain endemic with soft pink-mauve flower clusters and grayish lance-shaped leave
- [Heartleaf Milkweed (Asclepias cordifolia)](https://milkweedusa.com/species/heartleaf-milkweed/index.md): Arguably the handsomest milkweed in the West: smooth, waxy, blue-gray heart-shaped leaves clasping arching pur
- [Largeflower Milkweed (Asclepias connivens)](https://milkweedusa.com/species/largeflower-milkweed/index.md): A wet pine savanna milkweed with unusually large, pale green, cup-shaped flowers whose hoods lean inward and m
- [Lemmon’s Milkweed (Asclepias lemmonii)](https://milkweedusa.com/species/lemmons-milkweed/index.md): A slim sky-island milkweed of shaded canyon bottoms in southeastern Arizona and southwestern New Mexico, with 
- [Longhood Milkweed (Asclepias macrotis)](https://milkweedusa.com/species/longhood-milkweed/index.md): A slender limestone-canyon milkweed of west Texas, New Mexico and southern Colorado, with thread-like leaves a
- [Longleaf Milkweed (Asclepias longifolia)](https://milkweedusa.com/species/longleaf-milkweed/index.md): A slim coastal plain milkweed of damp pine savanna, with long narrow leaves and greenish-white flowers heavily
- [Mahogany Milkweed (Asclepias hypoleuca)](https://milkweedusa.com/species/mahogany-milkweed/index.md): A handsome sky-island milkweed whose broad leaves are conspicuously white beneath, carrying nodding clusters o
- [Mead’s Milkweed (Asclepias meadii)](https://milkweedusa.com/species/meads-milkweed/index.md): A federally threatened tallgrass-prairie milkweed with a single nodding cluster of greenish-cream flowers on a
- [Michaux’s Milkweed (Asclepias michauxii)](https://milkweedusa.com/species/michauxs-milkweed/index.md): A slender pine-flatwoods milkweed of the coastal plain with very narrow leaves and small dusky pink-green flow
- [Mojave Milkweed (Asclepias nyctaginifolia)](https://milkweedusa.com/species/mojave-milkweed/index.md): A low desert milkweed with broad soft leaves like a four-o’clock plant and nodding clusters of green-cream flo
- [Narrowleaf Milkweed (Asclepias fascicularis)](https://milkweedusa.com/species/narrowleaf-milkweed/index.md): The workhorse milkweed of the Pacific states and the backbone of western monarch recovery planting. Slim whorl
- [Nodding Milkweed (Asclepias glaucescens)](https://milkweedusa.com/species/nodding-milkweed/index.md): A stout borderland milkweed with thick blue-gray leaves and heavy nodding clusters of greenish-white flowers, 
- [Oval-leaf Milkweed (Asclepias ovalifolia)](https://milkweedusa.com/species/ovalleaf-milkweed/index.md): A compact northern-prairie milkweed under two feet tall, with neat oval leaves and small creamy-white flower c
- [Pallid Milkweed (Asclepias cryptoceras)](https://milkweedusa.com/species/pallid-milkweed/index.md): A jewel of the Great Basin: a low sprawling rosette of round, waxy, blue-green leaves surrounding cream flower
- [Pineland Milkweed (Asclepias obovata)](https://milkweedusa.com/species/pineland-milkweed/index.md): A modest greenish-yellow-flowered milkweed of dry southeastern pinelands and sandy roadsides, with softly hair
- [Pineneedle Milkweed (Asclepias linaria)](https://milkweedusa.com/species/pineneedle-milkweed/index.md): A shrubby, evergreen-looking milkweed densely clothed in soft needle-like leaves, resembling a small conifer u
- [Pinewoods Milkweed (Asclepias humistrata)](https://milkweedusa.com/species/pinewoods-milkweed/index.md): One of the most beautiful foliage plants in the genus: sprawling stems of thick blue-gray clasping leaves vein
- [Plains Milkweed (Asclepias pumila)](https://milkweedusa.com/species/plains-milkweed/index.md): A knee-high-at-most tuft of fine, almost dill-like foliage carrying tiny cream flowers, scattered across short
- [Poison Milkweed (Asclepias subverticillata)](https://milkweedusa.com/species/poison-milkweed/index.md): The whorled milkweed of the Southwest and southern Rockies: thin, wiry, colony-forming, and the species behind
- [Poke Milkweed (Asclepias exaltata)](https://milkweedusa.com/species/poke-milkweed/index.md): The woodland milkweed. Tall and slender with broad thin leaves like pokeweed, carrying loose, drooping cluster
- [Prairie Milkweed (Asclepias sullivantii)](https://milkweedusa.com/species/prairie-milkweed/index.md): Common milkweed’s refined cousin: the same big pink umbels and broad leaves, but smooth and hairless throughou
- [Prostrate Milkweed (Asclepias prostrata)](https://milkweedusa.com/species/prostrate-milkweed/index.md): A federally endangered milkweed known from a few sites in the south Texas brush country, growing completely fl
- [Purple Milkweed (Asclepias purpurascens)](https://milkweedusa.com/species/purple-milkweed/index.md): The most intensely colored milkweed in eastern North America, with deep magenta-purple flower heads held uprig
- [Red Milkweed (Asclepias rubra)](https://milkweedusa.com/species/red-milkweed/index.md): A rare bog and seepage-slope milkweed with dusky rose-red flowers and stiff, sharply pointed leaves, scattered
- [Rusby’s Milkweed (Asclepias rusbyi)](https://milkweedusa.com/species/rusbys-milkweed/index.md): A slender milkweed of Arizona and New Mexico pine-oak woodland and mountain grassland, with narrow alternate l
- [Rush Milkweed (Asclepias subulata)](https://milkweedusa.com/species/rush-milkweed/index.md): A leafless-looking fountain of blue-green pencil-thick stems topped with cream flowers, growing in the hottest
- [Ruth’s Milkweed (Asclepias ruthiae)](https://milkweedusa.com/species/ruths-milkweed/index.md): A low, spreading Colorado Plateau milkweed of red sand and slickrock country, with small thick leaves and pale
- [Sand Milkweed (Asclepias arenaria)](https://milkweedusa.com/species/sand-milkweed/index.md): A stout, velvety-gray milkweed of deep sand, found in sandhills, blowouts and dune country from Nebraska to Te
- [Savannah Milkweed (Asclepias pedicellata)](https://milkweedusa.com/species/savannah-milkweed/index.md): A small, easily overlooked coastal plain milkweed with narrow leaves and a few pale greenish-yellow flowers on
- [Serpentine Milkweed (Asclepias solanoana)](https://milkweedusa.com/species/serpentine-milkweed/index.md): A prostrate northern California endemic confined to serpentine barrens, forming flat mats of round gray-green 
- [Showy Milkweed (Asclepias speciosa)](https://milkweedusa.com/species/showy-milkweed/index.md): The West’s answer to common milkweed, and the single most important monarch host plant between the Great Plain
- [Slimleaf Milkweed (Asclepias stenophylla)](https://milkweedusa.com/species/slimleaf-milkweed/index.md): A tall wand of a plant with grass-fine leaves and creamy-green flowers clustered tight against the stem, scatt
- [Slimpod Milkweed (Asclepias quinquedentata)](https://milkweedusa.com/species/slimpod-milkweed/index.md): A slight, wiry milkweed of Arizona and New Mexico mountain woodland with very narrow leaves and small cream-gr
- [Southern Milkweed (Asclepias viridula)](https://milkweedusa.com/species/southern-milkweed/index.md): A rare wet-savanna milkweed of the Florida panhandle and south Georgia, with narrow leaves and small greenish-
- [Sperry’s Milkweed (Asclepias sperryi)](https://milkweedusa.com/species/sperrys-milkweed/index.md): A rare Trans-Pecos endemic of limestone ridges and rocky slopes in far west Texas, with thread-fine leaves and
- [Swamp Milkweed (Asclepias incarnata)](https://milkweedusa.com/species/swamp-milkweed/index.md): The best-behaved milkweed there is: a tidy, clump-forming, non-running perennial with narrow willow-like leave
- [Tall Green Milkweed (Asclepias hirtella)](https://milkweedusa.com/species/tall-green-milkweed/index.md): A stiff, upright tallgrass-prairie milkweed with crowded narrow leaves and dense round clusters of small green
- [Texas Milkweed (Asclepias texana)](https://milkweedusa.com/species/texas-milkweed/index.md): A refined Edwards Plateau endemic with thin dark green leaves and clean white flower clusters, growing in lime
- [Tropical Milkweed (Asclepias curassavica)](https://milkweedusa.com/species/tropical-milkweed/index.md): The scarlet-and-gold milkweed sold in nearly every garden center. It is not native to the United States, it fl
- [Tufted Milkweed (Asclepias nummularia)](https://milkweedusa.com/species/tufted-milkweed/index.md): One of the smallest milkweeds in North America, a low tuft of tiny round woolly leaves on rocky Arizona desert
- [Velvetleaf Milkweed (Asclepias tomentosa)](https://milkweedusa.com/species/velvetleaf-milkweed/index.md): A softly furred, low-growing milkweed of southeastern coastal sandhills and scrub, with greenish-cream flowers
- [Welsh’s Milkweed (Asclepias welshii)](https://milkweedusa.com/species/welshs-milkweed/index.md): A federally threatened dune endemic known from only a handful of active sand dune systems on the Utah–Arizona 
- [Wheel Milkweed (Asclepias uncialis)](https://milkweedusa.com/species/wheel-milkweed/index.md): One of the rarest and smallest milkweeds in North America, a two-inch-high scatter of maroon-tinged flowers on
- [White Milkweed (Asclepias variegata)](https://milkweedusa.com/species/white-milkweed/index.md): Tight snowball clusters of pure white flowers, each ringed with a fine purple-red band at its base, glowing in
- [Whitestem Milkweed (Asclepias albicans)](https://milkweedusa.com/species/whitestem-milkweed/index.md): The tallest milkweed in North America: chalk-white, essentially leafless stems rising to ten feet from rocky d
- [Whorled Milkweed (Asclepias verticillata)](https://milkweedusa.com/species/whorled-milkweed/index.md): A wiry, fine-textured milkweed that looks more like a horsetail than an Asclepias, with needle-thin leaves in 
- [Woolly Milkweed (Asclepias lanuginosa)](https://milkweedusa.com/species/woolly-milkweed/index.md): A tiny, shaggy-haired prairie milkweed only a few inches tall, with one cream flower cluster held on a short s
- [Woolly Milkweed (Asclepias vestita)](https://milkweedusa.com/species/woolly-milkweed-vestita/index.md): A low, densely white-woolly milkweed of California’s San Joaquin Valley and adjacent desert edges, with crowde
- [Woollypod Milkweed (Asclepias eriocarpa)](https://milkweedusa.com/species/woollypod-milkweed/index.md): A stout, woolly, cream-flowered California milkweed of dry hillsides and roadsides, with thick whorled leaves 
- [Zizotes Milkweed (Asclepias oenotheroides)](https://milkweedusa.com/species/zizotes-milkweed/index.md): A low, sprawling Texas and Southwest milkweed with wavy-edged leaves and greenish-cream flower clusters arisin

## Guides

- [How to plant milkweed seeds](https://milkweedusa.com/guides/how-to-plant-milkweed-seeds/index.md): Milkweed seed is easy once you understand one thing: most species will not germinate until they think winter h
- [When to plant milkweed](https://milkweedusa.com/guides/when-to-plant-milkweed/index.md): There are two good windows for milkweed and one bad one. Fall suits seed; late spring suits plants; midsummer 
- [Collecting and storing milkweed seed](https://milkweedusa.com/guides/collecting-milkweed-seed/index.md): Time the harvest wrong by a week and the seed either is not ripe or is halfway across the county. Here is how 
- [Milkweed and monarch butterflies](https://milkweedusa.com/monarchs/index.md): A monarch caterpillar can eat milkweed and nothing else. Remove milkweed from a landscape and you remove monar
- [The tropical milkweed problem](https://milkweedusa.com/guides/tropical-milkweed/index.md): It is the most widely sold milkweed in America and, south of the frost line, the most damaging plant a monarch
- [Milkweed pests and problems](https://milkweedusa.com/guides/milkweed-pests/index.md): Almost nothing you find on a milkweed needs killing. The bright orange aphids are the exception people ask abo
- [How to identify milkweed](https://milkweedusa.com/identify/index.md): Every milkweed shares one unmistakable flower structure. Learn to read it and the genus becomes obvious; after
- [Milkweed lookalikes and how to tell them apart](https://milkweedusa.com/guides/milkweed-lookalikes/index.md): Milky sap is not enough. Several unrelated plants bleed white, and two of the lookalikes actively kill monarch
- [Is milkweed poisonous?](https://milkweedusa.com/guides/is-milkweed-poisonous/index.md): Milkweed is genuinely toxic, but the practical risk in a garden is low. The species that cause real harm are t
- [How milkweed pollination works](https://milkweedusa.com/guides/milkweed-pollination/index.md): Milkweed does not shed loose pollen. It packages it into saddlebags that clip onto an insect leg like a piece 
- [Creating a monarch waystation](https://milkweedusa.com/guides/monarch-waystation/index.md): A monarch garden is three things: enough milkweed to raise caterpillars, enough late nectar to fuel the migrat
- [Buying milkweed seeds and plants](https://milkweedusa.com/guides/buying-milkweed/index.md): The two things that matter when buying milkweed: is it native to your region, and has it been treated with sys
- [Growing milkweed in containers](https://milkweedusa.com/guides/growing-milkweed-in-containers/index.md): Milkweed in a pot is entirely possible if you respect one thing: these are deep-rooted plants, and depth matte
- [Everything else that lives on milkweed](https://milkweedusa.com/guides/milkweed-community/index.md): Monarchs are the famous tenant, not the only one. Roughly a dozen insects in North America eat milkweed and al

## States

- [Milkweed in Alaska](https://milkweedusa.com/states/alaska/index.md): 0 species recorded.
- [Milkweed in Maine](https://milkweedusa.com/states/maine/index.md): 5 species recorded.
- [Milkweed in Vermont](https://milkweedusa.com/states/vermont/index.md): 7 species recorded.
- [Milkweed in New Hampshire](https://milkweedusa.com/states/new-hampshire/index.md): 8 species recorded.
- [Milkweed in Washington](https://milkweedusa.com/states/washington/index.md): 3 species recorded.
- [Milkweed in Idaho](https://milkweedusa.com/states/idaho/index.md): 3 species recorded.
- [Milkweed in Montana](https://milkweedusa.com/states/montana/index.md): 8 species recorded.
- [Milkweed in North Dakota](https://milkweedusa.com/states/north-dakota/index.md): 10 species recorded.
- [Milkweed in Minnesota](https://milkweedusa.com/states/minnesota/index.md): 13 species recorded.
- [Milkweed in Illinois](https://milkweedusa.com/states/illinois/index.md): 17 species recorded.
- [Milkweed in Wisconsin](https://milkweedusa.com/states/wisconsin/index.md): 13 species recorded.
- [Milkweed in Michigan](https://milkweedusa.com/states/michigan/index.md): 13 species recorded.
- [Milkweed in New York](https://milkweedusa.com/states/new-york/index.md): 11 species recorded.
- [Milkweed in Massachusetts](https://milkweedusa.com/states/massachusetts/index.md): 8 species recorded.
- [Milkweed in Rhode Island](https://milkweedusa.com/states/rhode-island/index.md): 8 species recorded.
- [Milkweed in Oregon](https://milkweedusa.com/states/oregon/index.md): 4 species recorded.
- [Milkweed in Nevada](https://milkweedusa.com/states/nevada/index.md): 18 species recorded.
- [Milkweed in Wyoming](https://milkweedusa.com/states/wyoming/index.md): 14 species recorded.
- [Milkweed in South Dakota](https://milkweedusa.com/states/south-dakota/index.md): 12 species recorded.
- [Milkweed in Iowa](https://milkweedusa.com/states/iowa/index.md): 16 species recorded.
- [Milkweed in Indiana](https://milkweedusa.com/states/indiana/index.md): 14 species recorded.
- [Milkweed in Ohio](https://milkweedusa.com/states/ohio/index.md): 12 species recorded.
- [Milkweed in Pennsylvania](https://milkweedusa.com/states/pennsylvania/index.md): 11 species recorded.
- [Milkweed in New Jersey](https://milkweedusa.com/states/new-jersey/index.md): 13 species recorded.
- [Milkweed in Connecticut](https://milkweedusa.com/states/connecticut/index.md): 11 species recorded.
- [Milkweed in California](https://milkweedusa.com/states/california/index.md): 14 species recorded.
- [Milkweed in Utah](https://milkweedusa.com/states/utah/index.md): 18 species recorded.
- [Milkweed in Colorado](https://milkweedusa.com/states/colorado/index.md): 19 species recorded.
- [Milkweed in Nebraska](https://milkweedusa.com/states/nebraska/index.md): 20 species recorded.
- [Milkweed in Missouri](https://milkweedusa.com/states/missouri/index.md): 17 species recorded.
- [Milkweed in Kentucky](https://milkweedusa.com/states/kentucky/index.md): 15 species recorded.
- [Milkweed in West Virginia](https://milkweedusa.com/states/west-virginia/index.md): 10 species recorded.
- [Milkweed in Virginia](https://milkweedusa.com/states/virginia/index.md): 14 species recorded.
- [Milkweed in Maryland](https://milkweedusa.com/states/maryland/index.md): 13 species recorded.
- [Milkweed in Delaware](https://milkweedusa.com/states/delaware/index.md): 13 species recorded.
- [Milkweed in Arizona](https://milkweedusa.com/states/arizona/index.md): 31 species recorded.
- [Milkweed in New Mexico](https://milkweedusa.com/states/new-mexico/index.md): 29 species recorded.
- [Milkweed in Kansas](https://milkweedusa.com/states/kansas/index.md): 24 species recorded.
- [Milkweed in Arkansas](https://milkweedusa.com/states/arkansas/index.md): 14 species recorded.
- [Milkweed in Tennessee](https://milkweedusa.com/states/tennessee/index.md): 14 species recorded.
- [Milkweed in North Carolina](https://milkweedusa.com/states/north-carolina/index.md): 19 species recorded.
- [Milkweed in South Carolina](https://milkweedusa.com/states/south-carolina/index.md): 23 species recorded.
- [Milkweed in District of Columbia](https://milkweedusa.com/states/district-of-columbia/index.md): 9 species recorded.
- [Milkweed in Texas](https://milkweedusa.com/states/texas/index.md): 35 species recorded.
- [Milkweed in Oklahoma](https://milkweedusa.com/states/oklahoma/index.md): 23 species recorded.
- [Milkweed in Louisiana](https://milkweedusa.com/states/louisiana/index.md): 19 species recorded.
- [Milkweed in Mississippi](https://milkweedusa.com/states/mississippi/index.md): 20 species recorded.
- [Milkweed in Alabama](https://milkweedusa.com/states/alabama/index.md): 24 species recorded.
- [Milkweed in Georgia](https://milkweedusa.com/states/georgia/index.md): 25 species recorded.
- [Milkweed in Hawaii](https://milkweedusa.com/states/hawaii/index.md): 3 species recorded.
- [Milkweed in Florida](https://milkweedusa.com/states/florida/index.md): 24 species recorded.