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Vascular Plants of California
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Eriastrum diffusum subsp. coachellae
COACHELLA 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.
Species: Eriastrum diffusumView Description 


Common Name: SPREADING WOOLLY-STAR
Habit: Annual, often diffusely branched from base or above, or unbranched in small plants, densely woolly to subglabrous. Stem: erect or spreading, 1--25 cm, thin, wiry, generally subglabrous, often brown. Leaf: 4--26 mm, lobes 0 or 1--5, lateral lobes 1--7.5 mm. Inflorescence: terminal, lightly to densely woolly, 3--20-flowered. Flower: calyx 4--7.5 mm, woolly, sometimes glandular, lobes subequal to unequal; corolla generally 5.5--11(12) mm, funnel-shaped, tube (2)3--5.6 mm, white, straight or curved, throat +- 0.5--2 mm, yellow or yellow-spotted, tube + throat 3.4--7 mm, lobes 1.5--4 mm, blue to cream or white, sometimes with reddish dots or stripes at base; stamens exserted 0.5--2.3 mm beyond corolla sinuses, attached +- 0.3--1.5 mm below sinus, free portion 1--3.5 mm, subequal to unequal, anthers +- 0.4--1 mm; pistil 3.9--8.4 mm, ovules +- 2--7 per ovary chamber. Fruit: capsule +- 2.7--4 mm, tan. Seed: +- 1--1.7 mm, tan to light brown, mostly angular.

Eriastrum diffusum (A. Gray) H. Mason subsp. coachellae De Groot
NATIVE
Stem: 4.5--16 cm, erect to spreading, sometimes decumbent. Leaf: 7--20 mm, young leaves woolly, subglabrous in age, lobes 0 or 1--3(5). Inflorescence: heads moderately to densely woolly. Flower: calyx 4--5 mm, lobes subequal to unequal; corolla 5.5--8 mm, color pattern rarely slightly bilateral, tube 3--5 mm, white, throat +- 0.5--0.75 mm, yellow or yellow-spotted, tube + throat 4.25--5 mm, lobes 1.5--2(3) mm, white to cream or very pale blue (sometimes drying blue), occasionally with tiny reddish spots or streaks at base; stamens exserted past corolla sinuses 0.5--1.3 mm, attached 0.6--1.2 mm below sinuses, free portion +- 1--2.2 mm, unequal to subequal, anthers +- 0.4--0.6 mm; pistil 5--6 mm, ovules 2--5 per ovary chamber, +- 8--9 total. Fruit: capsule +- 3--4 mm. Seed: +- 1--1.25 mm long, tan, angular.
Ecology: Washes, alluvial plains, sandbars, in creosote bush, desert wash scrub; Elevation: 0--500 m. Bioregional Distribution: e edge SnBr, e edge SnJt, DSon. Flowering Time: Mar--May
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 diffusum subsp. coachellae, in Jepson Flora Project (eds.) Jepson eFlora, Revision 12, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=103304, accessed on June 15, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on June 15, 2024.

No expert verified images found for Eriastrum diffusum subsp. coachellae.



Geographic subdivisions for Eriastrum diffusum subsp. coachellae:
e edge SnBr, e edge SnJt, DSon.
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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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Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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).