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Key to families | Table of families and genera

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Robert Patterson, family description, key to genera

Annual, perennial herb, shrub, vine. Leaf: simple or compound, cauline (or most basal), alternate or opposite; stipules 0. Inflorescence: cymes, heads, clusters, or flower 1; bracts in involucres or not. Flower: sepals generally 5, fused at base, translucent membrane generally connecting lobes, torn by fruit; corolla generally 5-lobed, radial or bilateral, salverform to bell-shaped, throat often well defined; stamens generally 5, epipetalous, attached at >= 1 level, filaments of >= 1 length, pollen white, yellow, blue, or red; ovary superior, chambers generally 3, style 1, stigmas generally 3. Fruit: capsule. Seed: 1–many, when wetted swelling or not, gelatinous or not.
26 genera, 314 species: America, northern Europe, northern Asia; some cultivated (Cantua, Cobaea (cup-and-saucer vine), Collomia, Gilia, Ipomopsis, Linanthus, Phlox). [Porter & Johnson 2000 Aliso 19:55–91] Leptodactylon moved to Linanthus. —Scientific Editors: Robert Patterson, Thomas J. Rosatti.

Key to Polemoniaceae


Leigh A. Johnson

1 sp. (Latin: hidden sister) [Johnson & Weese 2000 W N Amer Naturalist 60:355–373]

L. tenerrima (A. Gray) L.A. Johnson DELICATE GILIA
Annual, open, stalked-glandular. Stem: 3–35 cm, erect, thread-like, branched. Leaf: alternate, 0.5–4 cm, lanceolate to oblanceolate, entire (1–2 lobed), reduced upward. Inflorescence: loose, flowers 1, bract-opposed; pedicels spreading or recurved in fruit. Flower: calyx 1–2 mm, lobe margins membranous to tip, fused 0.6–0.8 × length; corolla 1.5–3.5 mm, tube, throat white, yellow spotted, included, lobes white to lavender or ± blue; stamens attached at mid corolla; stamens, style ± exserted; pollen white. Fruit: 1–3 mm, ± spheric, valves spreading, detaching. Seed: 1 per chamber, gelatinous when wet.
2n=36. Sandy, gravelly slopes; 1100–3000 m. East of Sierra Nevada; Oregon to Montana, Colorado. [Gilia tenerrima A. Gray] May–Sep [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Dec 1 2015
Citation for this treatment: [Author of taxon treatment] 2013. Lathrocasis, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Dec 1 2015

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Geographic subdivisions indicated for the distribution of Lathrocasis tenerrima 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).

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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.