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Vascular Plants of California
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Castilleja attenuata
VALLEY TASSELS


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: 101 genera, 2060 species: worldwide, especially northern temperate and Africa. Note: High yield losses in many crops caused by Orobanche and Phelipanche species in Africa, Mediterranean, Middle East, and eastern Europe. Taxa of Orobanche in TJM2 treated here in Aphyllon and Phelipanche.
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
Reference: Tank & Olmstead 2008 Amer J Bot 95:608--625
Unabridged Reference: Chuang & Heckard 1991 Syst Bot 16:644--666
Castilleja attenuata (A. Gray) T.I. Chuang & Heckard
NATIVE
Habit: Annual 10--50 cm, nonglandular, spreading-hairy. Leaf: 20--80 mm, +- linear; lobes 0--3. Inflorescence: 3--30 cm, 1--2 cm wide; bracts 15--35 mm, lobes 3, +- lanceolate, tips white or pale yellow. Flower: calyx 10--20 mm, divided +- 1/2 abaxially, 3/4 adaxially, 1/3 on sides; corolla 10--25 mm, linear, beak 4--5 mm, straight, puberulent, lower lip 3--4 mm, pouches +- 2 mm wide, 1--1.5 mm deep, +- white, purple-dotted; filaments glabrous; stigma included. Fruit: 7--11 mm. Seed: < 1 mm; coat shallowly netted, loose-fitting. Chromosomes: 2n=24.
Ecology: Grassland; Elevation: generally < 1600 m. Bioregional Distribution: CA-FP; Distribution Outside California: to British Columbia, northern Baja California; also central Chile. Flowering Time: Mar--May
Synonyms: Orthocarpus attenuatus A. Gray
Jepson eFlora Author: Margriet Wetherwax, T.I. Chuang & Lawrence R. Heckard
Reference: Tank & Olmstead 2008 Amer J Bot 95:608--625
Unabridged Reference: Chuang & Heckard 1991 Syst Bot 16:644--666
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Botanical illustration including Castilleja attenuata

botanical illustration including Castilleja attenuata

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Citation for this treatment: Margriet Wetherwax, T.I. Chuang & Lawrence R. Heckard 2012, Castilleja attenuata, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=18175, accessed on August 17, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on August 17, 2019.

Castilleja attenuata
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© 2016 Keir Morse
Castilleja attenuata
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© 2010 Barry Breckling
Castilleja attenuata
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© 2004 Carol W. Witham
Castilleja attenuata
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© 2009 Keir Morse
Castilleja attenuata
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© 2016 Neal Kramer
Castilleja attenuata
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© 2007 Carol W. Witham

More photos of Castilleja attenuata in CalPhotos



Geographic subdivisions for Castilleja attenuata:
CA-FP
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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.