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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
Annual, bristly, generally soft; hairs simple. Stem: erect. Leaf: generally 0 below, alternate, simple, 1–4 cm, linear to oblanceolate, entire to toothed; teeth acute to pointed or bristle-tipped. Inflorescence: bracts leaf-like; pedicels glandular. Flower: calyx lobes equal, pointed to bristle-tipped; corolla bilateral, 2-lipped, white to deep pink, upper lip generally 3-lobed, lower 2-lobed; stamens attached at or below sinuses, unequal, generally curved, included to exserted, pollen yellow; style generally exserted. Fruit: 2–5 mm, ovoid, 3-lobed in ×-section; outer wall of valve rounded or indented between walls separating chambers. Seed: gelatinous when wet.Key to Loeseliastrum
3 species: southwestern United States, northern Mexico. (Latin: like Loeselia) [Timbrook 1986 Madroño 33:157–174] Self-compatible; self- to cross-pollinated.
Leaf: largest generally oblanceolate, teeth coarse, bristle-tipped. Flower: calyx (except bristles) 1/2–3/4 corolla tube, lobes bristle-tipped; corolla strongly bilateral, 11–21 mm, white to deep rose-purple, upper lip 5–11 mm, 3/4 to > tube, < longer stamens, lobe bases with bright maroon arches and white blotch, lower lip 4–7 mm, lobe tips truncate, 3-toothed, or notched, generally with inward-directed projections in sinuses on either side of middle lobe of upper lip.
Common. Desert washes, flats, slopes, sandy to gravelly soils; generally < 1800 m. n Transverse Ranges, n Peninsular Ranges, East of Sierra Nevada, Mojave Desert, w Sonoran Desert; Nevada. Mar–Jul [Online Interchange]
Previous taxon: Loeseliastrum depressum
Next taxon: Loeseliastrum schottii
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Dec 20 2014
Citation for this treatment: [Author of taxon treatment] 2013. Loeseliastrum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=31360, accessed on Dec 20 2014
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© 2006 Larry Blakely
|Geographic subdivisions indicated for the distribution of Loeseliastrum matthewsii|| 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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(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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