Cassia roemeriana Scheele
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Authority
Isley, Duane. 1975. Leguminosae of the United States: II. Subfamily Caesalpinioideae. Mem. New York Bot. Gard. 25 (2): 1-228.
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Family
Caesalpiniaceae
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Scientific Name
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Description
Species Description - Perennial, pubescent, usually erect, branched herb with stems 2-5 dm clustered from a knotty caudex or large, woody root. Stem finely incurved puberulent; leaflets strigose to subvillous with slightly longer hairs. Petiole approximating leaflets or shorter, bearing an apical clavate to pointed gland. Leaflets 2, basally asymmetric, oblong-lanceolate, 2.5-5.5 cm, 4.5-7.2 r. Stipules setaceous, persistent. Flowers 2-5 in small racemes usually corymbosely clustered at stem tip. Sepals subequal, 6-7 mm; corolla pale yellow, 2.2-3 cm diam; functional stamens 7, the lower 3 somewhat longest; ovary villous. Legume dehiscent along both sutures from apex, ascending, oblong, compressed but turgid, slightly up-curved or straight, 2.5-3.5 cm long, 5-7 mm wide; valves stiffly papery, puberulent, medially dark brown, marginally light, cross-striate. Seeds few-many.
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Discussion
Earleocassia roemeriana (Scheele) Britt, ex Britt. 8c Rose (1930) CN n = 14 (Irwin and Turner, 1960)
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Distribution
Ce Texas to c New Mexico (a hiatus across the Texas Panhandle, Map 55), slightly into sw Oklahoma. Usually in open, dry, rocky, calcareous soils, a variety of floristic associations; e.g., oak woodland hills, cedar breaks, pinyon-juniper, mesquite rangeland, prairie to desert grassland; also moist canyon slopes and bottoms, sandy draws, roadsides. Common. 1600-6000 ft. Slightly in cult. April -June, continuing to flower July-Sept. in event of summer rains. N Mexico.
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