Jatropha dioica var. graminea
Bull. Torrey Bot. Club 72: 39. 1944.
Revision as of 23:35, 26 July 2019 by FNA>Volume Importer
Plants to 0.5 m. Leaves: blade linear-spatulate, 1.5–2.5 × 0.2–0.4 cm, unlobed; only midvein visible. Flowers: sepals connate basally; petals white; stamen filaments connate to 1/4 length.
Phenology: Flowering and fruiting late spring–early summer.
Habitat: Dry sandy soils.
Elevation: 100–900 m.
Distribution
Tex., Mexico (Chihuahua, Coahuila, San Luis Potosí, Zacatecas).
Discussion
The distribution of var. graminea lies west of that of var. dioica and does not extend as far south. In Texas, it is restricted to the trans-Pecos region. Some Mexican specimens erroneously annotated as var. graminea are actually Jatropha rzedowskii J. Jiménez Ramírez.
Selected References
None.
Lower Taxa
None.