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Castilleja densiflora subsp. gracilis

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
Species: Castilleja densifloraView Description 

Habit: Annual 10--40 cm, branches 0 or few from mid-stem, +- glabrous. Leaf: 20--80 mm, < 3 mm wide, lance-linear, lobes 0--3. Inflorescence: 3--25 cm, 2.5--4 cm wide; bracts 10--25 mm, tipped white or +- purple, lobes 3--5, linear. Flower: calyx divided 1/2 abaxially and on sides, 2/3 adaxially, lobes +- linear, tip wider; corolla 10--25 mm, yellow (cream), pink, or rose-purple, beak 5--6 mm, straight, puberulent, lower lip 4--5 mm, pouches 4--6 mm wide, 2--3 mm deep; filaments glabrous; stigma +- exserted, +- 2-lobed. Fruit: 7--10 mm. Seed: +- 0.5 mm; coat shallowly netted, loose-fitting. Chromosomes: 2n=24.
Note: Highly variable; many local forms; more study needed.

Castilleja densiflora subsp. gracilis (Benth.) T.I. Chuang & Heckard
NATIVE
Inflorescence: rose-purple; bracts < flowers. Flower: calyx 5--10 mm; corolla exserted, lower lip widened abruptly, pouches generally shorter than deep, teeth generally < 1 mm.
Ecology: Grassland; Elevation: < 1550 m. Bioregional Distribution: SCoR, SW; Distribution Outside California: northern Baja California. Flowering Time: Mar--May
Synonyms: Orthocarpus densiflorus Benth. var. gracilis (Benth.) D.D. Keck; Orthocarpus densiflorus subsp. gracilis Benth.
eFlora Treatment Author: Margriet Wetherwax, T.I. Chuang & Lawrence R. Heckard
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botanical illustration including Castilleja densiflora subsp. gracilis

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Citation for this treatment: Margriet Wetherwax, T.I. Chuang & Lawrence R. Heckard 2016. Castilleja densiflora subsp. gracilis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=49741, accessed on December 06, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 06, 2016.


Castilleja densiflora subsp. gracilis
click for enlargement
© 2015 Keir Morse
Castilleja densiflora subsp. gracilis
click for enlargement
© 2015 Keir Morse
Castilleja densiflora subsp. gracilis
click for enlargement
© 2015 Keir Morse
Castilleja densiflora subsp. gracilis
click for enlargement
© 2012 Gary A. Monroe
Castilleja densiflora subsp. gracilis
click for enlargement
© 2015 Keir Morse
Castilleja densiflora subsp. gracilis
click for enlargement
© 2015 Keir Morse

More photos of Castilleja densiflora subsp. gracilis in CalPhotos


Geographic subdivisions for Castilleja densiflora subsp. gracilis:
SCoR, SW;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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.