From Wikipedia, the free encyclopedia
Genus of flowering plants
Streptanthus is a
genus of plants within the family
Brassicaceae .
[2] There are 58 known
species within the genus Streptanthus , distributed through the western and south-central United States and northern Mexico.
[1] The common names for this genus are twistflower
[3] 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 .
58 species are accepted.
[1] The following are some of the species (or subspecies) of the genus Streptanthus (county locations are not intended to be exhaustive):
Streptanthus amplexicaulis (S.Watson) Jeps.
Streptanthus anceps (Payson) Hoover
Streptanthus anomalus D.L.Smith, A.Arthur & R.E.Preston
Streptanthus barbatus S.Watson – Pacific jewelflower
Streptanthus barbiger Greene – Bearded jewelflower
Streptanthus barnebyi (Rollins & P.K.Holmgren) Al-Shehbaz
Streptanthus batrachopus J.L.Morrison – Mt. Tamalpais jewelflower
Streptanthus bernardinus (Greene) Parish – Laguna Mountain jewelflower
Streptanthus brachiatus F.W.Hoffm. – Socrates Mine jewelflower
Streptanthus bracteatus A.Gray – Bracted twistflower
Streptanthus breweri A.Gray – Brewer's jewelflower
Streptanthus californicus (S.Watson) Greene
Streptanthus callistus J.L.Morrison – Mt. Hamilton jewelflower
Streptanthus campestris S.Watson – Southern jewelflower
Streptanthus carinatus C.Wright ex A.Gray – Lyreleaf jewelflower
Streptanthus cooperi (S.Watson) Al-Shehbaz
Streptanthus cordatus Nutt. – Heartleaf twistflower
Streptanthus coulteri (S.Watson) Greene
Streptanthus crassicaulis Torr.
Streptanthus cutleri Cory – Cutler's jewelflower
Streptanthus diversifolius S.Watson – Variableleaf jewelflower
Streptanthus drepanoides Kruckeb. & J.L.Morrison – Sicklefruit jewelflower
Streptanthus farnsworthianus J.T.Howell – Farnsworth's jewelflower
Streptanthus fenestratus (Greene) J.T.Howell – Tehipite Valley jewelflower (
Fresno County, California )
Streptanthus flavescens Hook.
Streptanthus glandulosus Hook. – Bristly jewelflower, common jewelflower (
Mendocino County to
San Luis Obispo County, California )
[4]
Streptanthus glandulosus subsp. albidus (Greene) Al-Shehbaz, M.S.Mayer & D.W.Taylor – Metcalf Canyon jewelflower (
Santa Clara County, California ), endangered
[5]
Streptanthus glandulosus subsp. arkii M.S.Mayer
Streptanthus glandulosus subsp. glandulosus
Streptanthus glandulosus var. hoffmanii Kruckeb.
Streptanthus glandulosus subsp. josephinensis Al-Shehbaz & M.S.Mayer
Streptanthus glandulosus subsp. niger (Greene) Al-Shehbaz, M.S.Mayer & D.W.Taylor – Tiburon jewelflower (
Marin County, California ), endangered
Streptanthus glandulosus subsp. pulchellus (Greene) Kruckeb.
Streptanthus glandulosus subsp. raichei M.S.Mayer
Streptanthus glandulosus subsp. secundus (Greene) Kruckeb.
Streptanthus glandulosus subsp. sonomensis (Kruckeb.) M.S.Mayer & D.W.Taylor
Streptanthus glaucus (S.Watson) Jeps.
Streptanthus gracilis Eastw. – Alpine jewelflower
Streptanthus hallii (Payson) Jeps.
Streptanthus hammittii (S.Boyd & T.S.Ross) Al-Shehbaz , Hammitt's clay-cress (Riverside and San Diego counties, California)
Streptanthus hesperidis Jeps.
Streptanthus heterophyllus Nutt.
Streptanthus hispidus A.Gray – Mt. Diablo jewelflower (
Contra Costa County, California )
Streptanthus howellii S.Watson – Howell's jewelflower
Streptanthus hyacinthoides Hook. – Sandhill twistflower (
Texas ,
Arkansas ,
Louisiana ,
Oklahoma ,
Nebraska )
Streptanthus inflatus (S.Watson) Greene
Streptanthus insignis Jeps. – Plumed jewelflower
Streptanthus juneae N.Jensen (
San Bernardino Mountains , San Bernardino County, California)
[6]
Streptanthus lasiophyllus (Hook. & Arn.) Hoover
Streptanthus lemmonii S.Watson
Streptanthus longirostris (S.Watson) S.Watson – longbeak streptanthella, streptanthella (western US and northwestern Mexico)
Streptanthus longisiliquus G.Clifton & R.E.Buck – Longfruit jewelflower
Streptanthus maculatus Nutt. – Clasping jewelflower, type species, (
Arkansas ,
Oklahoma ,
Texas )
Streptanthus major (M.E.Jones) Jeps.
Streptanthus medeirosii N.Jensen (
Tehachapi Mountains , Kern County, California)
[6]
Streptanthus morrisonii F.W.Hoffm. – Morrison's jewelflower
Streptanthus oblanceolatus T.W.Nelson & J.P.Nelson
Streptanthus oliganthus Rollins – Masonic Mountain jewelflower
Streptanthus petiolaris A.Gray
Streptanthus pilosus (S.Watson) Jeps.
Streptanthus platycarpus A.Gray
Streptanthus polygaloides A.Gray – Milkwort jewelflower
Streptanthus purpureus Sánchez Mata, Fuente, Rufo, Nuria Rodr. & Amils
Streptanthus simulans (Payson) Jeps.
Streptanthus squamiformis Goodman
Streptanthus tortuosus Kellogg – Mountain jewelflower, shieldplant
Streptanthus vernalis R.O'Donnell & R.W.Dolan – Early jewelflower
Streptanthus vimineus (Greene) Al-Shehbaz & D.W.Taylor
^
a
b
c
d
Streptanthus Nutt.
Plants of the World Online . Retrieved 12 December 2023.
^ Kruckeberg & Morrison 1983 Madroño 30:230–244
^
USDA, NRCS (n.d.).
"Streptanthus " . The PLANTS Database (plants.usda.gov) . Greensboro, North Carolina: National Plant Data Team. Retrieved 4 December 2015 .
^
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
^
a
b 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