Hemizonella (A. Gray) A. Gray (Q2855)

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Hemizonella is a taxon with the rank genus within the tribe Madieae
Language Label Description Also known as
English
Hemizonella (A. Gray) A. Gray
Hemizonella is a taxon with the rank genus within the tribe Madieae

    Statements

    taxon/id/Hemizonella (A. Gray) A. Gray
    0 references
    Hemizonella (A. Gray) A. Gray
    Hemizonella
    (A. Gray) A. Gray
    FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.
    accepted
    w North America
    Stems ± erect (branches often divaricate, hispidulous, stipitate-glandular).
    Leaves basal and/or cauline;
    proximal opposite, distal alternate (often in clusters of 2–3+ immediately proximal to branches);
    blades linear, margins entire or toothed, faces hirsute and (distal leaves) glandular-puberulent.
    Heads radiate, borne singly or in corymbiform arrays or glomerules (peduncles filiform).
    Peduncular bracts: pit-glands, tack-glands, or spines 0.
    Involucres ± obovoid, (1–) 2–4 mm diam.
    Phyllaries 3–5 in 1 series (each mostly or wholly enveloping a ray ovary, ± oblanceolate, herbaceous, abaxially hirsute and glandular-hirtellous).
    Receptacles flat to convex, glabrous or sparsely setulose, paleate (paleae falling, in 1 series between rays and discs, connate).
    Ray-florets 3–5, pistillate, fertile;
    corollas pale-yellow.
    Disc-florets 1–2, bisexual, fertile;
    corollas pale-yellow, (pubescent) tubes about equaling funnelform throats, lobes 5, deltate (anthers yellow; styles glabrous proximal to branches).
    Ray cypselae (black) obcompressed (arcuate, basal attachments centered, apices minutely beaked, beaks straight, oriented adaxially, 0.1–0.15 mm, faces sparsely hispidulous or glabrate);
    Disc cypselae (black) ± terete, clavate (± hispidulous, apices minutely beaked, beaks straight, oriented vertically, 0.1–0.15 mm);