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Streptanthus medeirosii
TEJON JEWELFLOWER


Higher Taxonomy
Family: Brassicaceae (Cruciferae)View DescriptionDichotomous Key
Common Name: MUSTARD FAMILY
Habit: Annual to shrub; sap pungent, watery. Leaf: generally simple, alternate; generally both basal, cauline; stipules 0. Inflorescence: generally raceme, generally not bracted. Flower: bisexual, generally radial; sepals 4, generally free; petals (0)4, forming a cross, generally white or yellow to purple; stamens generally 6 (2 or 4), 4 long, 2 short (3 pairs of unequal length); ovary 1, superior, generally 2-chambered with septum connecting 2 parietal placentas; style 1, stigma entire or 2-lobed. Fruit: capsule, generally 2-valved, "silique" (length >= 3 × width) or "silicle" (length < 3 × width), dehiscent by 2 valves or indehiscent, cylindric or flat parallel or perpendicular to septum, segmented or not. Seed: 1--many, in 1 or 2 rows per chamber, winged or wingless; embryo strongly curved.
Genera In Family: +- 330 genera, 3780 species: worldwide, especially temperate. Note: Highest diversity in Mediterranean area, mountains of southwestern Asia, adjacent central Asia, western North America; some Brassica species are oil or vegetable crops; Arabidopsis thaliana used in experimental molecular biology; many species are ornamentals, weeds. Aurinia saxatilis (L.) Desvaux in cultivation only. Aubrieta occasional waif in central NCoR, Carrichtera annua (L.) DC. in SCo, Iberis sempervirens L., Iberis umbellata L. in PR, Teesdalia coronopifolia (Bergeret) Thell., Teesdalia nudicaulis (L.) W.T. Aiton in southern NCoRO, CCo. Cardaria, Coronopus moved to Lepidium; Caulostramina to Hesperidanthus; Guillenia to Caulanthus; Heterodraba to Athysanus; California taxa of Lesquerella to Physaria; Malcolmia africana to Strigosella.
eFlora Treatment Author: Ihsan A. Al-Shehbaz, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: StreptanthusView DescriptionDichotomous Key


Common Name: JEWELFLOWER
Habit: Annual to perennial herb, generally +- glaucous; hairs simple or 0. Leaf: basal rosetted or not, petioled, entire or dentate to pinnately lobed or divided; cauline sessile, occasionally petioled, base generally lobed or clasping. Inflorescence: open, elongated, bracts 0 or bracted below proximal 1--2 flowers, sometimes with sterile flower cluster. Flower: radial or bilateral; calyx urn- or occasionally bell-shaped, sepals erect, base +- sac-like, keeled or not; petal blade narrower to wider than proximal 1/2, generally channeled, margins +- crinkled or not; stamens in 3 pairs of unequal length, or 4 long and 2 short, longest filaments fused or free. Fruit: silique, dehiscent, linear, flat parallel to septum, unsegmented; stigma entire or 2-lobed. Seed: 10--120, in 1 row, generally winged.
Etymology: (Greek: twisted flower, from wavy-margined petals)
eFlora Treatment Author: Robert E. Preston & Ihsan A. Al-Shehbaz
Reference: Mayer & Beseda 2010 Ann Missouri Bot Gard 97:106--116; Preston et al. 2019 Madroño 66:24--29; Jensen 2020 Madroño 67:19--34; Preston 2023 Phytoneuron 2023-22:1--10
Streptanthus medeirosii N. Jensen
NATIVE
Habit: Perennial herb, glabrous, glaucous. Stem: ascending, branched proximally, 2.4--5 dm. Leaf: leathery, light gray green to dark green, faces dull to shiny, often glaucous; basal not rosetted, petioled, 2.2--8.2 cm, 1.3--3.3 cm wide, obovate to spoon-shaped, base wedge-shaped, tip obtuse to acute, proximally entire, distally dentate (few-toothed); cauline sessile, 2.4--6.4 cm, 0.7--2.7 cm wide, obovate to lanceolate or narrowly elliptic, base cordate to reniform, tip obtuse to acute, margins entire (few distal teeth). Inflorescence: not bracted. Flower: calyx bell-shaped, sepals 5.1--7.7 mm, elliptic to ovate, not keeled, light green to white with green tips, glabrous (few-haired); petals 6.6--10.4 mm, 1.2--2.7 mm wide, base light green to cream, tips maroon to dark purple; longest filaments 4.4--7.2 mm; anthers fertile, 2.3--4.2 mm. Fruit: erect to ascending, 5.5--10.4 cm, 2.4--4.1 mm wide, straight to curved, not constricted between seeds, valves glabrous; stigma entire; pedicels ascending, 5--7 mm.
Ecology: Lower montane forest, steep rocky slopes or rock outcrops of carbonates or granitics; Elevation: 1600--1850 m. Bioregional Distribution: Teh. Flowering Time: Jun--Sep
Jepson eFlora Author: Robert E. Preston & Ihsan A. Al-Shehbaz
Reference: Mayer & Beseda 2010 Ann Missouri Bot Gard 97:106--116; Preston et al. 2019 Madroño 66:24--29; Jensen 2020 Madroño 67:19--34; Preston 2023 Phytoneuron 2023-22:1--10
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

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Citation for this treatment: Robert E. Preston & Ihsan A. Al-Shehbaz 2023, Streptanthus medeirosii, in Jepson Flora Project (eds.) Jepson eFlora, Revision 12, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=84754, accessed on June 15, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on June 15, 2024.

Streptanthus medeirosii
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©2019 Neal Kramer
Streptanthus medeirosii
click for enlargement
©2019 Neal Kramer
Streptanthus medeirosii
click for enlargement
©2019 Neal Kramer
Streptanthus medeirosii
click for enlargement
©2019 Neal Kramer
Streptanthus medeirosii
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©2022 Neal Kramer

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Geographic subdivisions for Streptanthus medeirosii:
Teh.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).





 

Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).