Common Name: PHLOX FAMILY Habit: 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. Genera In Family: 26 genera, 314 species: America, northern Europe, northern Asia; some cultivated (Cantua, Cobaea (cup-and-saucer vine), Collomia, Gilia, Ipomopsis, Linanthus, Phlox). Note:Leptodactylon moved to Linanthus. eFlora Treatment Author: Robert W. Patterson, family description, key to genera, except as noted Scientific Editor: Robert W. Patterson, Thomas J. Rosatti.
Common Name: WOOLLY-STAR Habit: Annual, perennial, or subshrub; often woolly, glandular or not. Stem: generally erect, branching from base or above, sometimes unbranched. Leaf: cauline, alternate, entire to pinnately lobed; lobes generally linear or lanceolate. Inflorescence: terminal, head-like or flower occasionally 1, bracted, lightly to densely woolly; bracts leaf-like; flowers sessile or subsessile. Flower: calyx lobes equal to unequal, lightly to densely woolly, sometimes glandular-puberulent; corolla funnel-shaped to salverform, radial or bilateral, white or blue to purple or yellow; stamens fused to corolla at base, equal or unequal, anthers sagittate, pollen white to blue; ovary 3-chambered, style included or exserted, stigma 3-lobed. Fruit: capsule loculicidal. Seed: 1--11 per chamber. Etymology: (Greek: woolly star) eFlora Treatment Author: Sarah J. De Groot Reference: De Groot 2016 Aliso 34(2):25--152.
Eriastrum eremicum (Jeps.) H. Mason subsp. eremicum
NATIVE Habit: Annual, erect to spreading, +- 2--30 cm, 1--40 cm wide. Stem: generally much-branched from base or above, young stems green and woolly, older stems dark reddish-brown and subglabrous, sometimes slightly woody at base in age. Leaf: 6--30(45) mm, lightly woolly, subglabrous and sometimes reddish-brown in age, lobes (3)5--9, lateral lobes 2--10 mm. Inflorescence: heads terminal, numerous, 2--15-flowered; bracts sometimes glandular. Flower: calyx 4--7 mm, woolly, lobes subequal; corolla 11--19 mm, well-exserted from calyx and bracts, generally bilateral, narrowly funnel-shaped to salverform, tube 4--8.8 mm, generally <= 1/2 corolla length, white to lavender or pale blue, throat 1.0--4.7 mm, pale blue or lavender to white, or sometimes yellow or with yellow dots, often asymmetric with unequal sinuses, tube +- throat 7.6--12.4 mm, lobes sometimes asymmetric, 4.1--7.8 mm, varying in length by <= 0.9 mm from unequal sinuses, violet, lavender, blue, or almost white, often with darker purplish or reddish streaks on or near veins, tips often twisted; stamens exserted 3.5--5.6 mm past corolla sinuses, attached 0.7--4 mm below sinuses, free portion 2--9 mm long, distinctly unequal in length by 1.0--4.2 mm, filaments often turning upward beyond throat, anthers 1--2.5 mm; pistil 9.9--14.8 mm, equaling or exceeding stamens >= +- 4 mm, ovules 6--12 total, 2--4 per ovary chamber. Fruit: capsule +- 2.5--3.1 mm, tan. Seed: +- 1.0--1.9 mm, mostly angular, sand-colored. Ecology: Washes, flats, playas, bajadas, hillsides, dunes, in desert scrub, arid woodland; Elevation: 100--1760 m. Bioregional Distribution: n edge SnGb, n&e edges SnBr, e edge PR, D; Distribution Outside California: to Nevada, Arizona, Baja California. Flowering Time: Apr--Jun(Aug--Sep) Note:Eriastrum eremicum subsp. markianum De Groot in Baja California (Mexico), Eriastrum eremicum subsp. yageri (M.E. Jones) H. Mason in Arizona, Eriastrum eremicum subsp. zionis (T.T. Craig) De Groot in Nevada, Utah. Jepson eFlora Author: Sarah J. De Groot Reference: De Groot 2016 Aliso 34(2):25--152. Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Eriastrum diffusum subsp. diffusum Next taxon: Eriastrum ertterae
Botanical illustration including Eriastrum eremicum subsp. eremicum
Citation for this treatment: Sarah J. De Groot 2023, Eriastrum eremicum subsp. eremicum, in Jepson Flora Project (eds.) Jepson eFlora, Revision 12, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=50335, accessed on April 16, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 16, 2024.
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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).
Data provided by the participants of the
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