Callirhoë scabriuscula
Callirhoë pedata
Texas poppy mallow
1(–6), stiffly erect, 3.2–10 dm, densely hairy, hairs 6–8-rayed, stellate.
(1–)2–5(–15), erect to weakly erect, 1.5–9 dm, essentially glabrous, but often with trace of simple or 4-rayed stellate hairs, glaucous.
stipules persistent, linear-lanceolate, 5.8–8.5 mm;
petiole 1.5–10 cm;
blade suborbiculate, 3- or 5-lobed, 4–6.5 × 3.8–7 cm, surfaces stellate-hairy, lobes oblong to oblanceolate or linear-oblanceolate.
stipules persistent, linear-lanceolate to subulate, 4–12.5(–15) mm;
petiole 3.5–16 cm;
blade cordate, suborbiculate, or ovate, crenate or 3–5-lobed, 2.5–8(–16) × 2.5–8(–14) cm, surfaces sparsely hairy with simple hairs abaxially, glabrate adaxially, lobes oblanceolate to obtrullate.
racemose;
involucellar bractlets (1–)3, linear, 5.5–10 × 0.7–1.5 mm.
racemose;
involucellar bractlets absent.
bisexual;
calyx lobes valvate in bud, forming apiculate or acuminate point;
petals reddish purple with deep-red basal spot, 3–3.7(–4) cm.
bisexual, rarely functionally pistillate;
calyx lobes valvate in bud, forming apiculate or acuminate point;
petals reddish purple without white basal spot, rarely white or intergrading shades of pink, 1.6–3.2 cm.
7.8–12 mm diam.;
mericarps 12–20, 4.2–5 × 3.2–4 mm, hairy, indehiscent;
beaks not prominent, 0.7–2 mm;
collars absent.
6–7.5 mm diam.;
mericarps 10–16, 2.5–3 × 2.5–3 mm, glabrous or with simple, appressed hairs, indehiscent;
beaks prominent or not, 0.7–1.2 mm;
collars absent or very weakly developed.
= 30.
= 28.
Callirhoë scabriuscula
Callirhoë pedata
Of conservation concern.
Callirhoë scabriuscula is found only in west-central Texas along the upper Colorado River where it has adapted to a rare edaphic niche, relict Quaternary sand dunes. Plants produce taproots up to one meter long. The U.S. Fish and Wildlife Service lists this species as endangered.
Callirhoë scabriuscula is in the Center for Plant Conservation’s National Collection of Endangered Plants.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Callirhoë pedata is variable with respect to indument, leaf size and shape, and mericarp shape; it is perhaps most closely related to C. alcaeoides, with which it intergrades in Oklahoma. In population samples, flowers of C. pedata are usually bisexual, and rarely functionally pistillate. Callirhoë pedata frequently is confused with C. digitata. Callirhoë pedata is introduced in Alabama, Georgia, and Illinois.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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