Eriophyllum lanosum |
Eriophyllum latilobum |
|
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white Easter bonnets, white easterbonnets or woolly daisy, white woolly daisy |
San Mateo woolly sunflower |
|
Habit | Annuals, 3–15 cm. | Perennials or subshrubs, 30–60(–90) cm. |
Stems | decumbent to ascending. |
erect (woolly). |
Leaves | blades oblanceolate to linear, 5–20 mm, rarely lobed, ultimate margins, usually entire, plane (apices acute), faces sparsely woolly. |
(proximal alternate): blades rhombic to obovate, 2–6 cm, 1-pinnately lobed (lobes 3–5, ± triangular), ultimate margins entire, revolute, abaxial faces loosely woolly, adaxial glabrate (distal leaves gradually reduced in size and lobing). |
Peduncles | 1–5 cm. |
mostly 2–7 cm. |
Involucres | campanulate to obconic, 3–5 mm diam. |
broadly campanulate, 5–6(–7) mm diam. |
Ray florets | 8–10; laminae white with red veins, 3–5 mm. |
(6–)8–10(–13); laminae yellow, 6–10 (× 4.5–5) mm. |
Disc florets | 10–20; corollas 2–3 mm (tubes cylindric, throats funnelform, gradually dilated, lobes glandular; anther appendages subulate, not glandular). |
40–75; corollas 3–4.5 mm. |
Phyllaries | 8–10, distinct. |
6–10, distinct (ovate, carinate, apices acute). |
Heads | borne singly. |
2–5(–10) in corymbiform arrays. |
Cypselae | 2.5–4.5 mm; pappi of 5 subulate scales 1.5–2.5 mm plus 4–5 oblong scales ± 0.5 mm. |
2–3 mm; pappi of 4 cuneate to oblanceolate scales 0.3–1 mm alternating with 4 shorter scales (in disc cypselae, disc pappi longer than ray pappi). |
2n | = 8. |
= 32. |
Eriophyllum lanosum |
Eriophyllum latilobum |
|
Phenology | Flowering Feb–May. | Flowering Apr–Jun. |
Habitat | Sandy or gravelly openings, desert scrublands | Usually shady sites, oak woodlands |
Elevation | 70–1400 m (200–4600 ft) | 100–200 m (300–700 ft) |
Distribution |
AZ; CA; NM; NV; UT; Mexico (Baja California)
|
CA |
Discussion | Of conservation concern. Eriophyllum latilobum combines characteristics of E. confertiflorum var. confertiflorum, with which it sometimes mingles, and E. lanatum var. arachnoideum. It may have originated by hybridization between them (L. Constance 1937; P. A. Munz 1959). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 21, p. 355. | FNA vol. 21, p. 362. |
Parent taxa | Asteraceae > tribe Heliantheae > subtribe Baeriinae > Eriophyllum | Asteraceae > tribe Heliantheae > subtribe Baeriinae > Eriophyllum |
Sibling taxa | ||
Synonyms | Burrielia lanosa, Antheropeas lanosum | |
Name authority | (A. Gray) A. Gray: Proc. Amer. Acad. Arts 19: 25. (1883) | Rydberg: in N. L. Britton et al., N. Amer. Fl. 34: 94. (1914) |
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