of North America Association Herbs perennial (biennial in D. alaskana), usually cushion or mat-forming, sometimes succulent (often suffrutescent). Rhizomes
11 KB (707 words) - 13:05, 30 July 2020
Capsule 0.6–1 mm, ovate to shortly oblong-cylindric, straight; operculum conic, obliquely apiculate; peristome usually not splitting or appearing to more
7 KB (288 words) - 06:45, 30 July 2020
included in subg. Dasanthera. Molecular data indicate that some sections as usually circumscribed are paraphyletic. Absent a robust phylogeny for Penstemon
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several-flowered), usually greatly elongated in fruit. Fruiting pedicels divaricate, ascending, or spreading [reflexed]. Flowers: sepals erect, narrowly oblong [linear]
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Annuals [biennials or perennials], (1–) 3–30 cm; usually taprooted, sometimes fibrous-rooted. Stems usually 1, erect (often with decumbent-ascending branches
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rhizomatous. Stems 1–50, usually forming colonies. Leaves mostly or fully unfolded; petiole 1–25 mm; blade elliptic-oblong to oblong-obovate, 50–80 × 15–45
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ascending or suberect, slender. Flowers: sepals ascending to erect, oblong, lateral pair usually not saccate basally (slightly saccate in H. linearifolius, apex
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short-petiolate, blade obovate, ovate, spatulate, trullate, oblanceolate, lanceolate, oblong, elliptic, linear, or orbiculate, margins entire. Thyrses continuous or
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linear, margins entire or toothed, faces usually hirsute, sometimes minutely stipitate-glandular as well (glands usually black, sometimes yellowish). Heads radiate
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perennials, or shrubs, 10–400+ cm (usually rhizomatous). Stems erect, decumbent, or prostrate, branched. Leaves usually cauline; opposite ± throughout or
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darker, sometimes black when old, usually erect, rarely sinuate at maturity or sterile stems sometimes arching, usually simple, not dendroid; rhizoids brown
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alternate, simple (usually 3-foliolate in T. laciniata); stipules present, persistent; petiole present, glands absent; blade usually unlobed, sometimes
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divaricate, or ascending, slender. Flowers: sepals ovate or oblong; petals oblanceolate or spatulate, [oblong, lingulate, elliptic], claw not differentiated from
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7–16 (–25) mm. Flowers: sepals usually recurved after flowering, (1.6–) 2.6–4.2 (–6.5) mm; petals oblanceolate to oblong, (4.9–) 7.2–9.8 (–14) × (1.6–)
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glandular. Leaves usually persistent through anthesis, basal, rosulate; petiole indistinct; blade broadly obovate or spatulate to oblong or oblanceolate
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faces thinly lanate to densely woolly (hairs crisped, tangled, or matted, usually 0.8+ mm) and/or glanddotted, glandular-puberulent, glandular-villous, or
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divaricate-ascending, slender, (glabrous). Flowers (usually actinomorphic, rarely zygomorphic, cupshaped); sepals erect, oblong to ovate, lateral pair slightly to strongly
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surfaces glabrous or glabrate to villous, sericeous, or strigose abaxially, usually glabrose or glabrate, sometimes glabrescent adaxially. Inflorescences fascicles
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distally; outer ovate, oblong, or broadly lanceolate, often foliaceous (apices rounded, obtuse, or acute); inner linear to narrowly oblong, margins scarious
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yellow-orange, oblong-ovoid to oblong-cylindric or cylindric, often somewhat asymmetric and deeply furrowed, smooth to strongly sulcate when dry, usually strumose;
10 KB (644 words) - 06:59, 30 July 2020