G4? Apparently Secure, Inexact Numeric Rank - Uncommon but not rare (although it may be rare in parts of its range, particularly on the periphery), and usually widespread. Apparently not vulnerable in most of its range, but possibly cause for long-term concern. Typically more than 100 occurrences and more than 10,000 individuals.
The ranking is inexact.
Spreading or decumbent shrub, 45.0 to 80.0 cm in height at matruity; the branches glabrous to pubescent, with spines usually somewhat hooked, but some may be straight; leaves 5.0 to 10.0 cm in length, the rachis prickly and with 4 to 8 pairs of pinn...
This species is a winter annual. Distribution is New Mexico and Arizona (USDA).
Perennial herb; stems striate, 3-9 dm tall; leaves 3-times pinnately divided (fern-like), 5-20 cm long and 4-15 cm wide, leaflets pinnately lobed or parted into linear-oblong to ovate divisions; inflorescence a compound umbel terminating each stem, p...
Erect shrub to 2.0 m tall; stems erect or ascending, unarmed, the twigs glandular-pubescent; leaves reniform to orbicular, shallowly 3- to 5-lobed, margins crenate-dentate, base cordate to cuneate, both surfaces glandular-pubescent; hypanthium about ...