Kingdom:
Phylum:
Angiosperms
Order:
Gentianales
Genus:
Species:
sanjuanensis
ID:
552404

Status:
valid

Authors:
K.D.Heil, J.M.Porter & S.L.Welsh

Source:
cmp

Year:
1989

Citation Micro:
Great Basin Naturalist 49: 100 (1989)

WFO Identifier:
wfo-0000551736

Common Names

  • San Juan Milkweed
  • San Juan Butterfly Weed
  • San Juan Pleurisy Root

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Description

Asclepias sanjuanensis (also called San Juan milkweed, among many other common names) is a perennial herbaceous plant native to the southwestern United States and northern Mexico. It grows in open, dry areas, such as grasslands and rocky slopes.

Uses & Benefits

Asclepias sanjuanensis has been used to make rope and paper. It is also used as an ornamental plant in gardens.

Flower, Seeds and Seedlings

Asclepias sanjuanensis has small, greenish-white flowers that are clustered in umbels. The seed pods are 3-4 cm long and contain numerous small, brown seeds. The seedlings have a rosette of leaves and a single stem.

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Cultivation and Propagation

Asclepias sanjuanensis is a perennial that can be propagated by division or seeds. It prefers moist, well-drained soils in full sun to partial shade. Pruning should be done in late winter or early spring to encourage new growth.

Where to Find Asclepias sanjuanensis

Asclepias sanjuanensis is native to the southwestern United States, and can be found in dry, sandy soils in areas such as Arizona, California, and Nevada.

Asclepias sanjuanensis FAQ

What is the natural habitat of Asclepias sanjuanensis?

Asclepias sanjuanensis is native to the southwestern United States and northern Mexico.

What is the size of Asclepias sanjuanensis?

Asclepias sanjuanensis is a perennial herb that grows up to 1.5 m tall.

What are the flowers of Asclepias sanjuanensis?

Asclepias sanjuanensis has white to pinkish flowers that are arranged in umbels.

Species in the Asclepias genus

Asclepias elegantula, Asclepias adscendens, Asclepias aequicornu, Asclepias albens, Asclepias albicans, Asclepias amabilis, Asclepias ameliae, Asclepias amplexicaulis, Asclepias angustifolia, Asclepias apocynifolia, Asclepias arenaria, Asclepias asperula, Asclepias atroviolacea, Asclepias aurea, Asclepias auriculata, Asclepias barjoniifolia, Asclepias bartlettiana, Asclepias baumii, Asclepias bicuspis, Asclepias bifida, Asclepias boliviensis, Asclepias brachystephana, Asclepias bracteolata, Asclepias brevicuspis, Asclepias brevipes, Asclepias bridgesii, Asclepias buchwaldii, Asclepias californica, Asclepias candida, Asclepias cinerea, Asclepias circinalis, Asclepias compressidens, Asclepias concinna, Asclepias connivens, Asclepias constricta, Asclepias conzattii, Asclepias cooperi, Asclepias cordifolia, Asclepias coulteri, Asclepias crassinervis, Asclepias crispa, Asclepias crocea, Asclepias cryptoceras, Asclepias cucullata, Asclepias cultriformis, Asclepias curassavica, Asclepias curtissii, Asclepias cutleri, Asclepias densiflora, Asclepias dependens,

Species in the Apocynaceae family

Acokanthera laevigata, Acokanthera oblongifolia, Acokanthera oppositifolia, Acokanthera rotundata, Acokanthera schimperi, Adenium boehmianum, Adenium multiflorum, Adenium obesum, Adenium oleifolium, Adenium swazicum, Adenium dhofarense, Aganosma breviloba, Aganosma cymosa, Aganosma gracilis, Aganosma lacei, Aganosma petelotii, Aganosma schlechteriana, Aganosma siamensis, Aganosma wallichii, Aganosma heynei, Alafia alba, Alafia barteri, Alafia benthamii, Alafia berrieri, Alafia calophylla, Alafia caudata, Alafia erythrophthalma, Alafia falcata, Alafia fuscata, Alafia insularis, Alafia intermedia, Alafia landolphioides, Alafia lucida, Alafia microstylis, Alafia multiflora, Alafia nigrescens, Alafia orientalis, Alafia parciflora, Alafia pauciflora, Alafia perrieri, Alafia schumannii, Alafia thouarsii, Alafia vallium, Alafia verschuereni, Alafia whytei, Alafia zambesiaca, Allamanda calcicola, Allamanda angustifolia, Allamanda blanchetii, Allamanda cathartica,

References

Stanley Larson Welsh (b.1928): Based on occurrence of standard abbreviation 'S.L.Welsh' in the authors string.
James Mark Porter (b.1956): Based on occurrence of standard abbreviation 'J.M.Porter' in the authors string.
Kenneth D. Heil (b.1941): Based on occurrence of standard abbreviation 'K.D.Heil' in the authors string.
POWO record for urn:lsid:ipni.org:names:272735-2: Based on the initial data import