Amblyopappus pusillus
Asteraceae tribe Heliantheae subtribe Baeriinae
dwarf coastweed, pineapple weed
1–3+ cm, often ± fleshy.
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.
ovoid or obconic to campanulate or hemispheric.
flat, convex, hemispheric, or conic (smooth, knobby, or pitted, glabrous or hairy), usually epaleate (paleae usually 0, rare in Eriophyllum).
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).
0.6–1 mm.
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.
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.
0.
radiate, discoid, or disciform, borne singly or in corymbiform, glomerate, or paniculiform arrays.
black, 1.5–2 mm;
pappi of white or purplish, apically ± muticous scales 0.5–0.8 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).
or pistillate corollas 0.6–1 mm (obscurely zygomorphic).
= 16.
Amblyopappus pusillus
Asteraceae tribe Heliantheae subtribe Baeriinae
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.)
1. Leaves all or mostly opposite | Lasthenia |
1. Leaves mostly alternate (proximal sometimes opposite) | → 2 |
2. Leaves glabrous (often granular-glandular, not woolly) | Amblyopappus |
2. Leaves ± woolly or tomentose (usually stems and/or phyllaries as well) | → 3 |
3. Heads ± disciform (4–7 peripheral florets pistillate, corollas with laminae ca. 0.5 mm) | Monolopia |
3. Heads usually radiate, sometimes discoid | → 4 |
4. Phyllaries usually reflexed in fruit (ray laminae 2–2.5 mm; pappi of 2, ± lacini-ate to nearly entire, often uniaristate scales 1.5–3 mm) | Eatonella |
4. Phyllaries usually ± erect in fruit | → 5 |
5. Ray florets 7–11 (corollas obscurely bilabiate, laminae each opposed by adaxial lobe or tooth) | Monolopia |
5. Ray florets 0 or 3–13 (corollas not bilabiate) | → 6 |
6. Annuals; ray cypselae obcompressed (disc corollas with rings of hairs at bases of limbs) | Pseudobahia |
6. Annuals, perennials, subshrubs, or shrubs; ray cypselae usually prismatic, 4–5-angled (disc corollas without rings of hairs) | → 7 |
7. Annuals, perennials, subshrubs, or shrubs; phyllaries 4–13(–15) in 1+ series; pappi 0, or coroniform, or of 6–12+ (distinct) scales (in 1–2 similar or contrasting series) | Eriophyllum |
7. Subshrubs; phyllaries 8–16+ in ± 2 series; pappi of 2–6+ (unequal or 2 opposite, longer, and ± equal, basally connate, oblong to subulate) scales (tips acute to erose) | Constancea |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
