Difference between revisions of "Polanisia dodecandra"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 1: 242. 1824.
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Latest revision as of 17:16, 6 November 2020
Annuals, rarely perennials, (5–)10–60(–90+) cm. Stems branched; hairs stalked, glandular throughout. Leaves: petiole green to purple, angled, 1.5–4.5(–6) cm, glandular; leaflet blade oblanceolate to obovate or broadly elliptic, 1.9–4.5(–6.5) × 0.5–2(–3) cm, margins entire, surfaces sparsely glandular. Racemes (dense) 5–20 cm (10–30 cm in fruit); bracts unifoliate, lanceolate to orbiculate, 5–20 mm. Pedicels 10–25(–40) mm. Flowers: sepals purple, oblong, 3–6 × 1.5–2.5 mm, margins entire, apex acuminate, glandular; petals white, pink, rose, or purple, oblong-ovate, clawed, abaxial pair (3–)5–10 × 1.8–3(–5) mm, apex emarginate to lacerate, adaxial pair 8–14 × 3–5 mm, apex emarginate; nectary glands bright orange, not conspicuous (in fruit); stamens 10–20, exserted, purple, (6–)7–28(–40) mm; anthers purple, 1–1.3 mm; gynophore 0–2 mm in fruit; ovary 5–10 mm; style deciduous in fruit, 5–17 mm; stigma purple. Capsules (inflated) 40–70 × 5–9 mm, reticulate, glandular. Seeds 20–65, dark reddish brown, globose to oblong, 2–2.3 mm, roughened or tuberculate-rugose.
Distribution
Alta., Man., Ont., Que., Sask., Ala., Ariz., Ark., Calif., Colo., Conn., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Mass., Md., Mich., Minn., Mo., Mont., N.Dak., N.H., N.J., N.Mex., N.Y., Nebr., Nev., Ohio, Okla., Oreg., Pa., S.Dak., Tex., Utah, Va., Vt., W.Va., Wash., Wis., Wyo., n Mexico.
Discussion
Subspecies 3 (3 in the flora).
Selected References
Lower Taxa
Key
| 1 | Petals (3-)5-7(-8) mm; stamens ± equaling orslightly longer than petals. | Polanisia dodecandra subsp. dodecandra |
| 1 | Petals (6-)8-14(-17) mm; stamens ± equaling, or slightly longer to ca. 2 times or more as long as petals | > 2 |
| 2 | Inflorescence bracts ovate to orbiculate; leaflet blade apex rounded; seeds tuberculate-rugose. | Polanisia dodecandra subsp. riograndensis |
| 2 | Inflorescence bracts lanceolate to ovate; leaflet blade apex acute to obtuse; seeds roughened. | Polanisia dodecandra subsp. trachysperma |