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Triteleia grandiflora

Higher Taxonomy
Family: ThemidaceaeView DescriptionDichotomous Key

Habit: Perennial herb from corm, outer coat fibrous [membranous]. Leaf: basal, 1--10, linear to narrow-lanceolate. Inflorescence: scapose, generally umbel-like; scape erect, generally 1(2), cylindric, generally rigid, occasionally wavy to twining; flower bracts 2--4[10], not enclosing flower buds. Flower: perianth parts 6 in 2 petal-like whorls, free or +- fused below into tube; staminodes 0 or 3; stamens 3 or 6, free or fused to perianth, occasionally appendaged; ovary superior, chambers 3, ovules 2--several per chamber. Fruit: capsule, loculicidal.
Genera In Family: 10--11 genera, 60--70 species: western North America.
eFlora Treatment Author: J. Chris Pires, except as noted
Scientific Editor: Dale W. McNeal, Thomas J. Rosatti, Bruce G. Baldwin.
Genus: TriteleiaView DescriptionDichotomous Key

Habit: Corm spheric, tan; daughter corms sessile. Leaf: 1--3, generally narrow-lanceolate, keeled, glabrous, entire, often withered at flower. Inflorescence: umbel-like, open; bracts +- lanceolate, +- scarious; pedicels +- erect, generally > perianth; flowers generally many. Flower: perianth tube generally funnel-shaped, lobes generally ascending to spreading; stamens 6, attached to perianth tube at 1 level or alternately at 2 levels, equal or short alternating with long, filaments free, appendages forming crown or generally 0, anthers attached at middle, generally angled away from stigma; ovary stalked, style 1, stigma +- 3-lobed. Fruit: generally stalked, ovoid. Seed: +- spheric, black-crusted.
Species In Genus: 15 species: western North America, especially northern and central California. Etymology: (Greek: 3 complete, for flower parts in 3s)
eFlora Treatment Author: J. Chris Pires & Glenn Keator
Reference: Kentner & Steiner 2014 Madroño 61:227--230
Unabridged Reference: Hoover 1941 Amer Midl Naturalist 25:73--100

Triteleia grandiflora Lindl.
Leaf: 20--70 cm, 4--10 mm wide. Inflorescence: scape 20--75 cm, smooth; pedicels 10--40 mm, ascending. Flower: perianth 17--35 mm, white to blue-purple, tube 8--20 mm, rounded at base, lobes 9--13 mm, spreading; stamens attached alternately at 2 levels, unequal, filaments 1--2 mm and 3--4 mm, triangular, anthers 2--4 mm, yellow or purple; ovary 2 × stalk. Chromosomes: n=8,12,16,20,24,28.
Ecology: Grassland, sagebrush, pine forests, hills; Elevation: 100--3000 m. Bioregional Distribution: n KR?, n CaR; Distribution Outside California: to British Columbia, Montana, Utah. Flowering Time: Apr--Jun Note: Possibly extirpated in California.
Synonyms: Triteleia grandiflora var. howellii (S. Watson) Hoover; Triteleia grandiflora subsp. howellii (S. Watson) Hoover, ined.; Brodiaea bicolor Suksd.; Brodiaea douglasii S. Watson var. howellii (S. Watson) M. Peck; Brodiaea grandiflora (Lindl.) J.F. Macbr., illeg.; Brodiaea howellii S. Watson; Hookera bicolor (Suksd.) Piper; Hookera douglasii (S. Watson) Piper; Hookera grandiflora (Lindl.) Kuntze; Hookera howellii (S. Watson) Piper; Milla grandiflora (Lindl.) Baker; Triteleia bicolor (Suksd.) A. Heller; Triteleia howellii (S. Watson) Greene;
eFlora Treatment Author: J. Chris Pires & Glenn Keator
Reference: Kentner & Steiner 2014 Madroño 61:227--230
Unabridged Reference: Hoover 1941 Amer Midl Naturalist 25:73--100
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Listed on CNPS Rare Plant Inventory

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botanical illustration including Triteleia grandiflora


Citation for this treatment: J. Chris Pires & Glenn Keator 2017, Triteleia grandiflora, in Jepson Flora Project (eds.) Jepson eFlora, Revision 5,, accessed on October 21, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora,, accessed on October 21, 2018.

Triteleia grandiflora
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© 2004 Christopher L. Christie

More photos of Triteleia grandiflora in CalPhotos

Geographic subdivisions for Triteleia grandiflora:
n KR?, n CaR;
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.
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, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.