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Apocynaceae

Plants and hosts of the Apocynaceae (Dogbane Family).

Cream colored flowers of welsh's milkweed (Asclepias welshii) in sand dunes.

A Comprehensive Guide to Welsh’s Milkweed (Asclepias welshii)

Welsh’s Milkweed (Asclepias welshii) is a herbaceous perennial that is native to the states of Arizona and Utah in the United States. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 1 to 3.5 feet tall, this species grows in… Read More »A Comprehensive Guide to Welsh’s Milkweed (Asclepias welshii)

Plant of ruth's milkweed (Asclepias ruthiae) in a dry area.

A Comprehensive Guide to Ruth’s Milkweed (Asclepias ruthiae)

Introduction Ruth’s Milkweed (Asclepias ruthiae) is a herbaceous perennial that is native to the southwestern United States in the states of Arizona, New Mexico, and Utah. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 2 to 4 inches tall,… Read More »A Comprehensive Guide to Ruth’s Milkweed (Asclepias ruthiae)

Greenish-yellow flowers of rusby's milkweed (Asclepias rusbyi) in an open area.

A Comprehensive Guide to Rusby’s Milkweed (Asclepias rusbyi)

Rusby’s Milkweed (Asclepias rusbyi) is a herbaceous perennial that is native to the southwestern United States, except California and extends south into Mexico. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 0.5 to 3.5 feet tall, this species grows… Read More »A Comprehensive Guide to Rusby’s Milkweed (Asclepias rusbyi)

Herbarium specimen of slim-pod milkweed (Asclepias quinquedentata).

A Comprehensive Guide to Slim-Pod Milkweed (Asclepias quinquedentata)

Slim-Pod Milkweed (Asclepias quinquedentata) is a herbaceous perennial that is native to the states of Arizona and New Mexico in the United States and extends south into Mexico. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 6 to 12… Read More »A Comprehensive Guide to Slim-Pod Milkweed (Asclepias quinquedentata)

Close-up of white flowers of big-seed milkweed (Asclepias macrosperma).

A Comprehensive Guide to Big-Seed Milkweed (Asclepias macrosperma)

Big-Seed Milkweed (Asclepias macrosperma) is a herbaceous perennial that is native to the four corners region of the United States. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 1 to 10 inches tall, this species grows in the sandy… Read More »A Comprehensive Guide to Big-Seed Milkweed (Asclepias macrosperma)

Fruits of pineneedle milkweed (Asclepias linaria).

A Comprehensive Guide to Pineneedle Milkweed (Asclepias linaria)

Pineneedle Milkweed (Asclepias linaria) is a herbaceous perennial that is native to the states of Arizona and New Mexico in the United States and ranges south into Mexico. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 1.5 to 6… Read More »A Comprehensive Guide to Pineneedle Milkweed (Asclepias linaria)

Plant of Lemmon's milkweed (Asclepias lemmonii) with greenish-yellow flowers.

A Comprehensive Guide to Lemmon’s Milkweed (Asclepias lemmonii)

Lemmon’s Milkweed (Asclepias lemmonii) is a herbaceous perennial that is native to the state of Arizona in the United States and ranges south into Mexico. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 2 to 3 feet tall, this… Read More »A Comprehensive Guide to Lemmon’s Milkweed (Asclepias lemmonii)

Yellowish-green flowers of Utah milkweed (Asclepias labriformis) in a sandy area.

A Comprehensive Guide to Utah Milkweed (Asclepias labriformis)

Utah Milkweed (Asclepias labriformis) is a herbaceous perennial that is native to the state of Utah in the United States. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 8 inches to 20 inches tall, this species grows in washes,… Read More »A Comprehensive Guide to Utah Milkweed (Asclepias labriformis)

Mahogany colored flowers of mahogany milkweed (Asclepias hypoleuca).

A Comprehensive Guide to Mahogany Milkweed (Asclepias hypoleuca)

Mahogany Milkweed (Asclepias hypoleuca) is a herbaceous perennial that is native to the states of Arizona and New Mexico in the United States. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 1 to 3.5 feet tall, this species grows… Read More »A Comprehensive Guide to Mahogany Milkweed (Asclepias hypoleuca)

Purplish flower of eastwood's milkweed (Asclepias eastwoodiana).

A Comprehensive Guide to Eastwood’s Milkweed (Asclepias eastwoodiana)

Eastwood’s Milkweed (Asclepias eastwoodiana) is a herbaceous perennial that is native and rare in the state of Nevada in the United States. This plant is a host to the Queen (Danaus gilippus) and Monarch (Danaus plexippus) butterflies. Growing from 4 to 8 inches tall, this species grows in… Read More »A Comprehensive Guide to Eastwood’s Milkweed (Asclepias eastwoodiana)