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Castilleja exserta subsp. latifolia

Higher Taxonomy
Family: OrobanchaceaeView DescriptionDichotomous Key

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

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
Species: Castilleja exsertaView Description 

Habit: Annual 10--45 cm, glandular-puberulent, stiff-hairy. Leaf: 10--50 mm; lobes 5--9, +- thread-like. Inflorescence: 2--20 cm, 2--4 cm wide; bracts 10--25 mm, white to purple-red, lobes 5--9 (lowest pair often again 2--4-lobed), +- linear, tips wider. Flower: calyx 10--22 mm, divided 1/2 abaxially, 2/3 adaxially, 1/3 on sides, colored like bracts; corolla 12--30 mm, beak 6--7 mm, densely shaggy-hairy, tip hooked, lower lip 4--6 mm, pouches 3--8 mm wide, 3--4 mm deep; filaments puberulent; stigma +- included. Fruit: 10--15 mm. Seed: 1--2 mm; coat deeply netted, loose-fitting.
Note: Highly variable; hybridizes with Castilleja attenuata, Castilleja densiflora, Castilleja lineariloba.

Castilleja exserta subsp. latifolia (S. Watson) T.I. Chuang & Heckard
Stem: branches many, decumbent. Inflorescence: banded alternately light and dark; distal bracts generally 5--7 mm wide, lobes < 2 mm, tipped pale lavender. Flower: corolla colored like bracts. Chromosomes: 2n=24.
Ecology: Coastal grassland, dunes; Elevation: < 500 m. Bioregional Distribution: NCo, n&c CCo. Flowering Time: Mar--May
Synonyms: Orthocarpus purpurascens Benth. var. latifolius S. Watson
eFlora Treatment Author: Margriet Wetherwax, T.I. Chuang & Lawrence R. Heckard
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botanical illustration including Castilleja exserta subsp. latifolia


Citation for this treatment: Margriet Wetherwax, T.I. Chuang & Lawrence R. Heckard 2016. Castilleja exserta subsp. latifolia, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 28, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on April 28, 2016.

Castilleja exserta subsp. latifolia
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© 1994 Gary A. Monroe
Castilleja exserta subsp. latifolia
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© 2012 Gary A. Monroe
Castilleja exserta subsp. latifolia
click for enlargement
© 1994 Gary A. Monroe
Castilleja exserta subsp. latifolia
click for enlargement
© 2015 Barry Breckling
Castilleja exserta subsp. latifolia
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© 2009 Neal Kramer
Castilleja exserta subsp. latifolia
click for enlargement
© 2015 Barry Breckling

More photos of Castilleja exserta subsp. latifolia in CalPhotos

Geographic subdivisions for Castilleja exserta subsp. latifolia:
NCo, n&c CCo.
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.
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).

View elevation by latitude chart
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.