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Vascular Plants of California
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Draba lonchocarpa
SPEAR-FRUITED DRABA


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: DrabaView DescriptionDichotomous Key


Habit: Annual to perennial herb, generally cushion- or mat-forming, occasionally scapose, hairs simple, forked, or many-branched. Leaf: basal generally rosetted; cauline entire or shallowly toothed, base generally not lobed, occasionally 0. Inflorescence: generally many-flowered, elongated or not; bracts generally 0. Flower: sepals bases equal; petals generally short-clawed, yellow or white (lavender or red). Fruit: silique or silicle, dehiscent, linear to lanceolate or ovate, occasionally ovoid or spheric, cylindric or flat parallel to septum, unsegmented; stigma entire. Seed: in 2 rows; wing generally 0.
Species In Genus: 370+ species: northern hemisphere, South America mountains. Etymology: (Greek: acrid, describing taste of crucifer leaves)
eFlora Treatment Author: Ihsan A. Al-Shehbaz
Reference: Al-Shehbaz & Windham 2007 Harvard Pap Bot 12:409--419
Unabridged Reference: Beilstein & Windham 2003 Syst Bot 28:584--592; Hitchcock 1941 Univ Washington Publ Biol 11:1--132; Koch & Al-Shehbaz 2002 Ann Missouri Bot Gard 89:88--109; Rollins & Price 1988 Aliso 12:17--27; Schulz 1927 Pflanzenreich IV 105(Heft 89):1--396
Draba lonchocarpa Rydb.
NATIVE
Habit: Perennial herb, tufted. Stem: few to many, (1)3--11 cm, glabrous or hairs minutely stalked, 8--12-rayed. Leaf: basal (1.5)3--15 mm, oblanceolate to obovate, entire, abaxial hairs short-stalked, 8--12-rayed, adaxially glabrous or hairs simple and long-stalked, branched, leaf midvein obscure; cauline leaves 0 or 1(4), entire. Inflorescence: 3--9-flowered; axis glabrous or as hairy as stem, +- wavy in fruit; pedicels 2--9(15) mm, glabrous or hairy. Flower: sepals 1.5--2 mm; petals 2--3.5 mm, 1--1.5 mm wide, white. Fruit: 6--15(18) mm, 1--2(3) mm wide, linear to narrowly lanceolate or oblong, flat, +- twisted or not, glabrous or puberulent, hairs simple and minutely stalked, 2-rayed; style 0.1--0.3 mm. Seed: 16--28, 0.7--1 mm, ovoid. Chromosomes: 2n=16.
Ecology: Calcareous scree; Elevation: 2800--4000 m. Bioregional Distribution: c SNH (Convict Creek Basin, Mono Co.), n W&I (White Mtns); Distribution Outside California: to Alaska, Colorado; eastern Russia. Flowering Time: Jun--Jul
Synonyms: Draba lonchocarpa var. lonchocarpa; Draba nivalis Lilj. var. elongata S. Watson
Jepson eFlora Author: Ihsan A. Al-Shehbaz
Reference: Al-Shehbaz & Windham 2007 Harvard Pap Bot 12:409--419
Unabridged Reference: Beilstein & Windham 2003 Syst Bot 28:584--592; Hitchcock 1941 Univ Washington Publ Biol 11:1--132; Koch & Al-Shehbaz 2002 Ann Missouri Bot Gard 89:88--109; Rollins & Price 1988 Aliso 12:17--27; Schulz 1927 Pflanzenreich IV 105(Heft 89):1--396
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Botanical illustration including Draba lonchocarpa

botanical illustration including Draba lonchocarpa

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Citation for this treatment: Ihsan A. Al-Shehbaz 2012, Draba lonchocarpa, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=23370, accessed on May 25, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on May 25, 2019.

Draba lonchocarpa
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© 2004 Steve Matson
Draba lonchocarpa
click for enlargement
© 2016 Steve Matson
Draba lonchocarpa
click for enlargement
© 2016 Steve Matson
Draba lonchocarpa
click for enlargement
© 2016 Steve Matson
Draba lonchocarpa
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© 2015 Dylan Neubauer
Draba lonchocarpa
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© 2004 Steve Matson

More photos of Draba lonchocarpa in CalPhotos



Geographic subdivisions for Draba lonchocarpa:
c SNH (Convict Creek Basin, Mono Co.), n W&I (White Mtns)
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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).





 

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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.
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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.