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Castilleja tenuis

Higher Taxonomy
Family: OrobanchaceaeView DescriptionDichotomous Key

Common Name: BROOMRAPE FAMILY
Habit: Annual, perennial herb, shrub; often glandular; root-parasites, roots modified into absorptive structures. Stem: generally round in ×-section. Leaf: generally simple, generally alternate, reduced to +- fleshy scales in non-green plants lacking chlorophyll; stipules generally 0. Inflorescence: spike to panicle, generally bracted, or flowers 1--2 in axils. Flower: bisexual; calyx lobes 0--5; corolla generally strongly bilateral, generally 2-lipped (upper lip generally 2-lobed, lower lip generally 3-lobed), abaxial lobes outside other lobes in bud; stamens epipetalous, 4 in 2 pairs (sometimes 1 pair sterile), additional staminode 0(1), anther sacs unequal; ovary superior, chambers 1--2, placentas 2--4, parietal, style 1, stigma lobes 0 or 2. Fruit: capsule, generally +- ovoid, loculicidal, valves 2--4. Seed: many, small, angled; surface smooth or netted.
Genera In Family: 99 genera, 2060 species: worldwide, especially northern temperate and Africa. Note: High yield losses in many crops caused by Orobanche species in Africa, Mediterranean, Middle East, and eastern Europe.
eFlora Treatment Author: Margriet Wetherwax, except as noted
Scientific Editor: Robert Patterson, Bruce G. Baldwin.
Genus: CastillejaView DescriptionDichotomous Key

Common Name: PAINTBRUSH, OWL'S-CLOVER
Habit: Annual to subshrub, green. Leaf: sessile, entire to dissected. Inflorescence: spike-like; bracts becoming shorter, wider, more lobed than leaves, mature tips generally cream to red or green. Flower: calyx unequally 4-lobed, colored like bract tips; corolla upper 2 lip lobes fused, beak-like, tip open, lower lip reduced, 3-toothed to -pouched; stamens 4, anther sacs 2, unequal; stigma entire to 2-lobed, generally exserted. Fruit: +- asymmetric. Seed: generally +- brown, attached at base; coat netted, net-like walls ladder-like or not.
Species In Genus: +- 200 species: especially western North America. Etymology: (Domingo Castillejo, Spanish botanist, 1744--1793) Note: Hybridization and polyploidy common. Biologically consistent taxa difficult to define. Castilleja chrymactis Pennell not in California, sole (1947) record a misidentified, incomplete specimen.
eFlora Treatment Author: Margriet Wetherwax, T.I. Chuang & Lawrence R. Heckard

Castilleja tenuis (A. Heller) T.I. Chuang & Heckard
NATIVE
Habit: Annual 10--45 cm, spreading-hairy, glandular distally. Leaf: 10--40 mm, lance-linear, lobes 0--3(5). Inflorescence: 5--25 cm, 1--3 cm wide; bracts 10--30 mm, ovate, green, lobes 3--7, +- lanceolate. Flower: calyx 8--12 mm, divided 1/3 abaxially and on sides, 1/2 adaxially; corolla 12--20 mm, white or yellow, beak 4--5 mm, straight, puberulent, lower lip 3--4 mm, pouches 2--4 mm wide, +- 2 mm deep; stigma included. Fruit: 6--9 mm. Seed: +- 1 mm; coat +- deeply netted, loose-fitting. Chromosomes: 2n=24,48.
Ecology: Moist flats, meadows; Elevation: 1000--2800 m. Bioregional Distribution: KR, NCoR, CaR, SNH, SnBr (rare), PR (rare), MP, n SNE; Distribution Outside California: to Alaska. Flowering Time: May--Aug
Synonyms: Orthocarpus hispidus Benth.
eFlora Treatment Author: Margriet Wetherwax, T.I. Chuang & Lawrence R. Heckard
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Citation for this treatment: Margriet Wetherwax, T.I. Chuang & Lawrence R. Heckard 2016. Castilleja tenuis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=18324, accessed on February 09, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 09, 2016.


Castilleja tenuis
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© 2009 Thomas Stoughton
Castilleja tenuis
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© 2006 George W. Hartwell
Castilleja tenuis
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© 2005 Steve Matson
Castilleja tenuis
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© 2012 Barry Rice
Castilleja tenuis
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© 2009 Thomas Stoughton
Castilleja tenuis
click for enlargement
© 2008 Steve Matson

More photos of Castilleja tenuis in CalPhotos


Geographic subdivisions for Castilleja tenuis:
KR, NCoR, CaR, SNH, SnBr (rare), PR (rare), MP, n SNE;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.