Streptanthus glandulosus

Streptanthus glandulosus
	Streptanthus glandulosus subsp. glandulosus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Brassicales
Family:	Brassicaceae
Genus:	Streptanthus
Species:	S. glandulosus
Binomial name
	Streptanthus glandulosus; Hook. (1836)
Subspecies and varieties
	Ten; see text
Synonyms
	Erysimum glandulosum (Hook.) Kuntze (1891); Euklisia glandulosa (Hook.) Greene (1904);

Streptanthus glandulosus is a species of flowering plant in the mustard family known by the common name bristly jewelflower.^[2] It is native to California and southwestern Oregon, where it grows in many types of habitat, including grassland, chaparral, and woodlands. Genetic and other analyses indicate that it is a species complex with ten subspecies which evolved as populations were isolated from each other.^[3] The complex includes subspecies previously considered separate species, such as the rare Tiburon jewelflower (ssp. niger) endemic to the San Francisco Bay Area.^[4] Plants in the complex are variable. In general they are annual herbs growing 10 centimeters to over a meter in height. They may be hairless hairy to bristly. The ephemeral basal leaves have blades borne on winged petioles. Leaves higher on the stem are linear to lance-shaped and clasp the stem at their bases. Flowers occur at intervals along the upper stem. Each flower has an urn-shaped calyx of sepals one-half to over one centimeter long which can be almost any color from white to yellowish to pink or purple to nearly black. Purple, white, or purple-veined white petals emerge from the tip. The fruit is a straight or curving silique up to 11 centimeters long.

Subdivisions[edit]

Ten subspecies and varieties are accepted:^[1]

Streptanthus glandulosus subsp. albidus (Greene) Al-Shehbaz, M.S.Mayer & D.W.Taylor
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
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

References[edit]

^ ^a ^b ^c Streptanthus glandulosus Hook. Plants of the World Online. Retrieved 13 December 2023.
^ USDA, NRCS (n.d.). "Streptanthus glandulosus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 4 December 2015.
^ Mayer, M. S. and L. Beseda. (2010). Reconciling taxonomy and phylogeny in the Streptanthus glandulosus complex (Brassicaceae). Annals of the Missouri Botanical Garden 97:1 106-116.
^ Flora of North America

External links[edit]

[powo-1] Streptanthus glandulosus Hook. Plants of the World Online. Retrieved 13 December 2023.

[2] USDA, NRCS (n.d.). "Streptanthus glandulosus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 4 December 2015.

[3] Mayer, M. S. and L. Beseda. (2010). Reconciling taxonomy and phylogeny in the Streptanthus glandulosus complex (Brassicaceae). Annals of the Missouri Botanical Garden 97:1 106-116.

[4] Flora of North America

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