Eriophyllum lanosum |
Asteraceae tribe Heliantheae subtribe Baeriinae |
|||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
white Easter bonnets, white easterbonnets or woolly daisy, white woolly daisy |
|
|||||||||||||||||||||||||||||
Habit | Annuals, 3–15 cm. | Annuals, perennials, subshrubs, or shrubs, 1–200 cm. | ||||||||||||||||||||||||||||
Stems | decumbent to ascending. |
|||||||||||||||||||||||||||||
Leaves | blades oblanceolate to linear, 5–20 mm, rarely lobed, ultimate margins, usually entire, plane (apices acute), faces sparsely woolly. |
basal, basal and cauline, or mostly cauline; mostly opposite (Lasthenia) or mostly alternate; usually sessile, sometimes obscurely petiolate; blades (often 1–2 times pinnately lobed) or lobes often linear, ultimate margins entire or toothed, faces often ± woolly to tomentose, sometimes glabrate or glabrous, often gland-dotted. |
||||||||||||||||||||||||||||
Peduncles | 1–5 cm. |
|||||||||||||||||||||||||||||
Involucres | campanulate to obconic, 3–5 mm diam. |
ovoid or obconic to campanulate or hemispheric. |
||||||||||||||||||||||||||||
Receptacles | flat, convex, hemispheric, or conic (smooth, knobby, or pitted, glabrous or hairy), usually epaleate (paleae usually 0, rare in Eriophyllum). |
|||||||||||||||||||||||||||||
Ray florets | 8–10; laminae white with red veins, 3–5 mm. |
0 or 4–21, pistillate, fertile (3–8 peripheral florets pistillate, fertile, corollas tubular in Amblyopappus and Monolopia congdonii); corollas yellow to orange, often darker proximally, sometimes purplish (usually ± bilabiate in Monolopia). |
||||||||||||||||||||||||||||
Disc florets | 10–20; corollas 2–3 mm (tubes cylindric, throats funnelform, gradually dilated, lobes glandular; anther appendages subulate, not glandular). |
2–300, bisexual, fertile; corollas yellow to orange, tubes shorter than or about equaling funnelform or campanulate throats, lobes 4–5, deltate, glabrous or papillate; anther thecae usually pale; stigmatic papillae in 2 lines. |
||||||||||||||||||||||||||||
Phyllaries | 8–10, distinct. |
persistent, mostly 3–18 in 1–2 series, (erect or reflexed in fruit) distinct or connate, mostly elliptic, lanceolate, ovate, or obovate, usually ± equal, mostly herbaceous, sometimes indurate (at least proximally), flat or weakly cupped at bases, sometimes scarious-margined, often woolly to tomentose, sometimes glabrate or glabrous. |
||||||||||||||||||||||||||||
Calyculi | 0. |
|||||||||||||||||||||||||||||
Heads | borne singly. |
radiate, discoid, or disciform, borne singly or in corymbiform, glomerate, or paniculiform 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. |
clavate or obovoid to terete, or obpyramidal, sometimes compressed or obcompressed, glabrous, hairy, or papillate (compressed, callous-margined, and ciliolate in Eatonella, Lasthenia chrysantha, and Monolopia congdonii; sometimes winged in Monolopia); pappi 0 or of 1–12+ aristate, erose, laciniate, or truncate scales or awns in 1–2 series (often 2 sorts of scales in combination on 1 cypsela). |
||||||||||||||||||||||||||||
2n | = 8. |
|||||||||||||||||||||||||||||
Eriophyllum lanosum |
Asteraceae tribe Heliantheae subtribe Baeriinae |
|||||||||||||||||||||||||||||
Phenology | Flowering Feb–May. | |||||||||||||||||||||||||||||
Habitat | Sandy or gravelly openings, desert scrublands | |||||||||||||||||||||||||||||
Elevation | 70–1400 m (200–4600 ft) | |||||||||||||||||||||||||||||
Distribution |
AZ; CA; NM; NV; UT; Mexico (Baja California)
|
w North America; Mexico; w South America |
||||||||||||||||||||||||||||
Discussion | Genera 9, species 44 (7 genera, 41 species in the flora). Members of Baeriinae are found mostly in western North America; there are disjuncts in western South America. H. Robinson (1981) treated Baeriinae as a relatively isolated element among epaleate subtribes of Heliantheae. B. G. Baldwin (in Baldwin et al. 2002) included Baeriinae within Madieae. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|||||||||||||||||||||||||||||
Key |
|
|||||||||||||||||||||||||||||
Source | FNA vol. 21, p. 355. | FNA vol. 21, p. 335. | ||||||||||||||||||||||||||||
Parent taxa | Asteraceae > tribe Heliantheae > subtribe Baeriinae > Eriophyllum | Asteraceae > tribe Heliantheae | ||||||||||||||||||||||||||||
Sibling taxa | ||||||||||||||||||||||||||||||
Subordinate taxa | ||||||||||||||||||||||||||||||
Synonyms | Burrielia lanosa, Antheropeas lanosum | subtribe Eriophyllinae | ||||||||||||||||||||||||||||
Name authority | (A. Gray) A. Gray: Proc. Amer. Acad. Arts 19: 25. (1883) | Bentham & Hooker f.: Gen. Pl. 2: 200. (1873) | ||||||||||||||||||||||||||||
Web links |