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Vascular Plants of California
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Eriastrum abramsii
ABRAMS' WOOLLY-STAR


Higher Taxonomy
Family: PolemoniaceaeView DescriptionDichotomous Key
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.
Genus: EriastrumView DescriptionDichotomous Key


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 abramsii (Elmer) H. Mason
NATIVE
Habit: Annual, 6--15 cm. Stem: 1 or several from base or branched above, densely white-woolly. Leaf: 8--30(45) mm, woolly at least at base, subglabrous in age; generally pinnately 3--7-lobed, lobes thread-like, medium green, contrasting with white wool. Inflorescence: heads with 6--10 flowers open at a time, densely woolly, densely bracted. Flower: calyx 5--6 mm, woolly, lobes unequal; corolla 5--8 mm, radial, salverform, exserted from calyx < 2 mm, tube 2.8--3.5 mm, pale blue to white, throat 0.7--1.25 mm, pale blue to white, tube + throat 3.7--4.4 mm, lobes 1.5--2.5 mm, pale blue or lavender to white, midvein often darker; stamens exserted 0.4--0.6 mm past corolla sinus, inserted 0.4--0.7(2) mm below sinus, free portion 1.5 mm, equal or subequal, anthers 0.5--0.75 mm; pistil 3.5--4.25 mm, style 2 mm, white, persistent, stigma lobes +- 0.5 mm, often at same height as anther bases. Fruit: capsule triangular, easily falling from persistent calyx, straw-colored, smooth, shiny, 4 mm, tip pointed, seed 1 per chamber. Seed: 3 mm, brown, slimy when wetted.
Ecology: Edges of chamise chaparral thickets on hillsides or in canyons; Elevation: 650--900 m. Bioregional Distribution: NCoRI, SnFrB, SCoRI. Flowering Time: May--Jun
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)

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Citation for this treatment: Sarah J. De Groot 2023, Eriastrum abramsii, in Jepson Flora Project (eds.) Jepson eFlora, Revision 12, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=24587, accessed on April 18, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 18, 2024.

Eriastrum abramsii
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©2016 Neal Kramer
Eriastrum abramsii
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©2016 Neal Kramer
Eriastrum abramsii
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©2018 Neal Kramer
Eriastrum abramsii
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©2018 Neal Kramer
Eriastrum abramsii
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©2009 Vernon Smith

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Geographic subdivisions for Eriastrum abramsii:
NCoRI, SnFrB, SCoRI.
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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).





 

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 (fruiting time in some monocot genera).