Euphorbia serpillifolia subsp. hirtula

(Engelmann ex S. Watson) Oudejans

Phytologia 67: 48. 1989. (as serpyllifolia)

Basionym: Euphorbia hirtula Engelmann ex S. Watson in W. H. Brewer et al., Bot. California 2: 74. 1880
Synonyms: Chamaesyce hirtula (Engelmann ex S. Watson) Millspaugh C. serpillifolia subsp. hirtula (Engelmann ex S. Watson) Koutnik E. serpillifolia var. hirtula (Engelmann ex S. Watson) L. C. Wheeler
Treatment appears in FNA Volume 12. Treatment on page 288. Mentioned on page 287.

Stems pilose or villous. Leaves: petiole and blade pilose or villous. Involucre pilose or villous. Pistillate flowers: ovary pilose, villous, or glabrous. Capsules pilose, villous, or glabrous.


Phenology: Flowering and fruiting summer–fall.
Habitat: Chaparral, oak woodlands, oak-pine forests, disturbed roadsides.
Elevation: 700–1900 m.

Distribution

V12 536-distribution-map.jpg

Calif., Mexico (Baja California).

Discussion

Subspecies hirtula has a scattered and disjunct distribution primarily in montane areas of central and southern California and northern Baja California. In the flora area, it is found in the central Sierra Nevada and the Santa Lucia, San Bernardino, San Jacinto, Cuyamaca, and Laguna mountains.

Selected References

None.

Lower Taxa

None.
Victor W. Steinmann +, Jeffery J. Morawetz +, Paul E. Berry +, Jess A. Peirson +  and Ya Yang +
(Engelmann ex S. Watson) Oudejans +
Euphorbia hirtula +
Calif. +  and Mexico (Baja California). +
700–1900 m. +
Chaparral, oak woodlands, oak-pine forests, disturbed roadsides. +
Flowering and fruiting summer–fall. +
Chamaesyce hirtula +, C. serpillifolia subsp. hirtula +  and E. serpillifolia var. hirtula +
Euphorbia serpillifolia subsp. hirtula +
Euphorbia serpillifolia +
subspecies +