Dwarf Stickpea

Anneslia herbacea (Engelm.) Britton & Rose
Calliandra humilis Benth. Lond. Joum. Bot. S: 103. 1846.
Calliandra herbacea Engelm.; A. Gray, Mem. Am. Acad. II. 4: 39. 1849.
More or less pilose, or glabrate, branched below, subherbaceous from a woody base and a deep woody root; stems slender, 1-2 dm. long, erect or diffuse. Stipules lanceolate, 2-4 mm. long; petioles slender, 1-3 cm. long; pinnae 3-9 pairs; leaflets 10-18 pairs, oblong or linear-oblong, obtuse, 3-nerved, sparingly reticulate-veined, 1.5-5 mm. long; peduncles slender, 1-3 cm. long, axillary, mostly solitary; heads several-flowered; calyx 4-5-toothed, about 2 mm. long; corolla about 6 mm. long; stamens about twice as long as the corolla; legume 4—7 mm. long, about 7 mm. wide, pubescent when young, becoming glabrous.
Type locality: Between San Miguel and Las Vegas, New Mexico. Distribution: Western Texas; New Mexico and Arizona to Zacatecas and Jalisco.

Anneslia humilis (Schl.) Britton & Rose
Acacia humilis Schl. Linnaea 12: 567. 1838.
Calliandra reticulata A. Gray. PI. Wright. 2: 53. 1853. ^
Anneslia reticulata Britton. Trans. N. Y. Acad. Sci. 14: 32. 1894.
Feuilleea humilis Kuntze, Rev. Gen. PI. 188. 1891.
Feuilleea reticulata KunUc, Rev. Gen. PI. 189. 1891.
Subherbaceous with a thick woody base, glabrous, or sparingly pilose-pubescent, branched below, the thick woody root sometimes 3-6 dm. long, the stems suberect or spreading, 1-2 dm. long. Stipules ovate, 2-4 mm. long; petioles slender, 1-3 cm. long; pinnae 1-4 pairs; leaflets 4—1 1 pairs, obliquely oval, obtuse or rounded, strongly 3-5-nerved and reticulateveined, 4— 10 mm. long; peduncles slender, 1.5-3 cm. long; axillary, solitary or binate; heads few-several-flowered; calyx pilose or glabrous, about 2 mm. long; corolla glabrate, 3-4 mm. long; stamens pink, 7-10 mm. long; legume glabrous or sparsely pubescent, 3-5 mm. long, apiculate.
Type locality: Near Regla, Hidalgo.
Distribution: New Mexico and Arizona, south to Hidalgo and Jalisco.