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Key to families | Table of families and genera

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POLEMONIACEAE PHLOX FAMILY

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

ERIASTRUM

Sarah De Groot, David Gowen & Robert Patterson

Glabrous to woolly, glandular or not. Stem: generally erect. Leaf: cauline, alternate, generally pinnate-lobed or simple; lobes generally linear or lanceolate. Inflorescence: head-like, bracted, generally densely woolly; bracts leaf-like; flowers sessile. Flower: calyx lobes unequal, generally woolly; corolla radial or bilateral, funnel-shaped to salverform; stamens equal or not, anthers generally sagittate, pollen white or blue; style included or exserted. Seed: 1–several per chamber.
16 species: western North America. (Greek: woolly star) [Harrison 1972 Brigham Young Univ Sci Bull, Biol Ser 16:1–26] Apparently much undescribed variation; genus being revised. Key to species by David Gowen, Sarah De Groot.

Key to Eriastrum

E. harwoodii (T.T. Craig) D. Gowen
NATIVE
Annual. Stem: to 20 cm. Leaf: 10–35 mm, thread-like, entire or 3-lobed near base, yellow-green, densely woolly. Flower: corolla 6–7.5 mm, narrowly funnel-shaped, pale yellow or cream to white, tube 4 mm, throat yellow, lobes elliptic, ± 2 mm; stamens attached ± 0.2 mm below sinus, equal. Seed: generally 2 per chamber.
Sand dunes in creosote-bush scrub; < 1000 m. Mojave Desert, n Sonoran Desert. [Eriastrum sparsiflorum (Eastw.) H. Mason subsp. harwoodii (T.T. Craig) H.K. Harrison] Mar–May [Online Interchange] {CNPS list}

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 23 2014
Citation for this treatment: [Author of taxon treatment] 2013. Eriastrum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=86188, accessed on Nov 23 2014

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Geographic subdivisions indicated for the distribution of Eriastrum harwoodii 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.
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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.