The open plant encyclopedia
Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.
The plants people record most in your country, and ones that grow there wild.
Filter by what you want to do, shape, origin, country, care and safety.
Astragalus cremnophylax
Also called Sentry Milk Vetch, Cliff Milkvetch
Astragalus cremnophylax is a rare species of milkvetch known by the common names sentry milkvetch and cliff milkvetch. It is endemic to Arizona, where the three varieties grow in three separate locations. The rarest variety, var. cremnophylax, is a federally listed endangered species which grows only on the rim of the Grand Canyon. The two other varieties are known from the Buckskin Mountains and Marble Canyon.
This plant is a resident of the Kaibab Limestone, where it grows in cracks in the bare limestone. The habitat is a pavement of dry, exposed, white rock that takes full sun and brisk, dry winds. Plants occur in rock crevices that have a few centimeters of soil, if any, and accumulate a minute amount of moisture at times. The species sometimes grows alongside Petrophytum caespitosum, which occupies a similar niche.
Astragalus aboriginum · Rogue River milkvetch · Sharp-leaved Milk Vetch · Sharpkeel milkvetch · Humboldt County milkvetch · Purple milkvetch · Cushenbury milkvetch · Astragalus alopecurus · Alpine milkvetch · Crescent milkvetch · Hermit Milkvetch · Anderson's milkvetch
Text excerpted from the Wikipedia article Astragalus cremnophylax by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
