Streptanthus Explained
Streptanthus is a genus of plants within the family Brassicaceae.[1] There are 58 known species within the genus Streptanthus, distributed through the western and south-central United States and northern Mexico. The common names for this genus are twistflower and jewelflower. Twenty-four of the species and eleven lesser taxa occur in California, thirty-two of which are California endemics; seventeen of these California taxa are classified as rare plants.
Species and subspecies
58 species are accepted. The following are some of the species (or subspecies) of the genus Streptanthus (county locations are not intended to be exhaustive):
- Streptanthus amplexicaulis
- Streptanthus anceps
- Streptanthus anomalus
- Streptanthus barbatus – Pacific jewelflower
- Streptanthus barbiger – Bearded jewelflower
- Streptanthus barnebyi
- Streptanthus batrachopus – Mt. Tamalpais jewelflower
- Streptanthus bernardinus – Laguna Mountain jewelflower
- Streptanthus brachiatus – Socrates Mine jewelflower
- Streptanthus bracteatus – Bracted twistflower
- Streptanthus breweri – Brewer's jewelflower
- Streptanthus californicus
- Streptanthus callistus – Mt. Hamilton jewelflower
- Streptanthus campestris – Southern jewelflower
- Streptanthus carinatus – Lyreleaf jewelflower
- Streptanthus cooperi
- Streptanthus cordatus – Heartleaf twistflower
- Streptanthus coulteri
- Streptanthus crassicaulis
- Streptanthus cutleri – Cutler's jewelflower
- Streptanthus diversifolius – Variableleaf jewelflower
- Streptanthus drepanoides – Sicklefruit jewelflower
- Streptanthus farnsworthianus – Farnsworth's jewelflower
- Streptanthus fenestratus – Tehipite Valley jewelflower (Fresno County, California)
- Streptanthus flavescens
- Streptanthus glandulosus – Bristly jewelflower, common jewelflower (Mendocino County to San Luis Obispo County, California)[2]
- Streptanthus glaucus
- Streptanthus gracilis – Alpine jewelflower
- Streptanthus hallii
- Streptanthus hammittii, Hammitt's clay-cress (Riverside and San Diego counties, California)
- Streptanthus hesperidis
- Streptanthus heterophyllus
- Streptanthus hispidus – Mt. Diablo jewelflower (Contra Costa County, California)
- Streptanthus howellii – Howell's jewelflower
- Streptanthus hyacinthoides – Sandhill twistflower (Texas, Arkansas, Louisiana, Oklahoma, Nebraska)
- Streptanthus inflatus
- Streptanthus insignis – Plumed jewelflower
- Streptanthus juneae (San Bernardino Mountains, San Bernardino County, California)[4]
- Streptanthus lasiophyllus
- Streptanthus lemmonii
- Streptanthus longirostris – longbeak streptanthella, streptanthella (western US and northwestern Mexico)
- Streptanthus longisiliquus – Longfruit jewelflower
- Streptanthus maculatus – Clasping jewelflower, type species, (Arkansas, Oklahoma, Texas)
- Streptanthus major
- Streptanthus medeirosii (Tehachapi Mountains, Kern County, California)[4]
- Streptanthus morrisonii – Morrison's jewelflower
- Streptanthus oblanceolatus
- Streptanthus oliganthus – Masonic Mountain jewelflower
- Streptanthus petiolaris
- Streptanthus pilosus
- Streptanthus platycarpus
- Streptanthus polygaloides – Milkwort jewelflower
- Streptanthus purpureus
- Streptanthus simulans
- Streptanthus squamiformis
- Streptanthus tortuosus – Mountain jewelflower, shieldplant
- Streptanthus vernalis – Early jewelflower
- Streptanthus vimineus
External links
Notes and References
- Kruckeberg & Morrison 1983 Madroño 30:230–244
- http://www.ventanawild.org/news/spring06/jewelflower.html David Rogers, The Double Cone Register, Vol IX, no. 1, Spring, 2006
- Andy Kratter, Summary of Rare Plant Search along the Western California University Access Road Alignment, Los Gatos, County of Santa Clara, California, prepared for City of Los Gatos and State of California Environmental Clearinghouse, Earth Metrics Inc. Report 7965.W0, May, 1989
- Nick Jensen "Two New Species of Streptanthus (Brassicaceae) in Southern California, and Notes on their Conservation," Madroño, 67(1), 19-34, (23 April 2020) https://doi.org/10.3120/0024-9637-67.1.19
