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.
Common Name: ROCKCRESS Habit: Perennial herb (biennial); caudex simple or branched, persistent leaf bases generally absent; rosetted or not; rosette at ground surface or elevated on woody base; hairs simple or 2--14-rayed, stalked or sessile. Stem: simple or branched, leafy. Leaf: basal petioled, simple, generally entire or dentate, generally hairy; cauline sessile, base generally lobed, entire or dentate. Inflorescence: generally elongated. Flower: sepals bases generally not sac-like; petals generally white, lavender, or purple, claw present or 0; pollen ellipsoid in sexual pls, spheric in plants with asexual seeds. Fruit: silique, dehiscent, generally linear, edges generally parallel, unsegmented, flat parallel to septum; stigma entire or 2-lobed. Seed: in 1 or 2 rows, winged or not. Etymology: (T.W. Boecher, Danish cytogeneticist, 1909--1983) Note: Some species with both fertile & sterile stems. Previously included in Arabis, but the 2 genera in different tribes. Boechera horizontalis (Greene) Windham & Al-Shehbaz [Arabis suffrutescens S. Watson var. horizontalis (Greene) Rollins] not in California. Unabridged Note: Hybrids with spheric pollen and morphological intermediacy generally more common than sexual diploids (with ellipsoid pollen). eFlora Treatment Author: Michael D. Windham & Ihsan A. Al-Shehbaz Reference: Windham & Al-Shehbaz 2006--2007 Harvard Pap Bot 11:61--88, 11:257--274, 12:235--257 Unabridged Reference: Al-Shehbaz 2003 Novon 13:381--391
Boechera repanda (S. Watson) Al-Shehbaz
NATIVE Habit: Caudex generally not woody. Stem: generally 1 per caudex branch, from center of basal rosette at +- ground surface; generally 2--9 dm, proximally with short- to long-stalked, 2--6-rayed hairs 0.2--0.5 mm (few simple hairs to 1.5 mm). Leaf: basal 7--50 mm wide, wavy-margined to coarsely dentate (entire); hairs short- to long-stalked, 3--6-rayed, 0.2--0.5 mm; cauline (3)8--30, distal +- hairy, basal lobes 0. Inflorescence: 7--25-flowered, not 1-sided in fruit; fruit pedicel erect to spreading-ascending, straight, 3--10 mm, glabrous or with spreading 2--5-rayed (simple) hairs. Flower: sepals glabrous or +- hairy; petals 3.5--6 mm, 0.8--1 mm wide, white; pollen ellipsoid. Fruit: erect to spreading-ascending, not appressed, 3.5--13.5 cm, 2.5--4 mm wide, glabrous or hairy throughout; style 0.5--1.5 mm; ovules 34--50. Seed: in 1 row, 2.5--6 mm; wing 0.7--1.8 mm wide. Chromosomes: 2n=14. Ecology: Rock outcrops, talus, gravelly soil in meadows, open pine forest; Elevation: 1400--3600 m. Bioregional Distribution: NCoRH, SNH, e WTR, SnGb, SnBr, SnJt; Distribution Outside California: Nevada. Flowering Time: Jun--Jul Synonyms: Arabis repanda S. Watson; Arabis repanda var. greenei Jeps. Listed in CNPS Inventory; Arabis repanda var. repanda; Boechera repanda (S. Watson) Al-Shehbaz var. greenei (Jeps.) D.W. Taylor Jepson eFlora Author: Michael D. Windham & Ihsan A. Al-Shehbaz Reference: Windham & Al-Shehbaz 2006--2007 Harvard Pap Bot 11:61--88, 11:257--274, 12:235--257 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Boechera rectissima Next taxon: Boechera retrofracta
Citation for this treatment: Michael D. Windham & Ihsan A. Al-Shehbaz 2012, Boechera repanda, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=81765, accessed on December 03, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on December 03, 2024.
Geographic subdivisions for Boechera repanda:
NCoRH, SNH, e WTR, SnGb, SnBr, SnJt
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(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 occurrence).
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Duplicates counted once; synonyms included.
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