Difference between revisions of "Penstemon cobaea"
Trans. Amer. Philos. Soc., n. s. 5: 182. 1835.
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| − | |distribution= | + | |distribution=Ariz.;Ark.;Colo.;Ill.;Iowa;Kans.;Mo.;N.Mex.;Nebr.;Ohio;Okla.;Tex. |
|discussion=<p>Varieties 2 (2 in the flora).</p><!-- | |discussion=<p>Varieties 2 (2 in the flora).</p><!-- | ||
--><p><i>Penstemon cobaea</i> occurs widely in the central and southern Great Plains and into the Ozark Plateau. The species is a popular ornamental used in the breeding of the European or large-flowered hybrids of <i>Penstemon</i> (D. Lindgren and E. Wilde 2003). A chromosome count of n = 32 (R. Piotrowska 1934) appears doubtful.</p> | --><p><i>Penstemon cobaea</i> occurs widely in the central and southern Great Plains and into the Ozark Plateau. The species is a popular ornamental used in the breeding of the European or large-flowered hybrids of <i>Penstemon</i> (D. Lindgren and E. Wilde 2003). A chromosome count of n = 32 (R. Piotrowska 1934) appears doubtful.</p> | ||
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|basionyms= | |basionyms= | ||
|family=Plantaginaceae | |family=Plantaginaceae | ||
| − | |distribution= | + | |distribution=Ariz.;Ark.;Colo.;Ill.;Iowa;Kans.;Mo.;N.Mex.;Nebr.;Ohio;Okla.;Tex. |
|reference=None | |reference=None | ||
|publication title=Trans. Amer. Philos. Soc., n. s. | |publication title=Trans. Amer. Philos. Soc., n. s. | ||
|publication year=1835 | |publication year=1835 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V17/V17_335.xml |
|genus=Penstemon | |genus=Penstemon | ||
|subgenus=Penstemon subg. Penstemon | |subgenus=Penstemon subg. Penstemon | ||
Revision as of 21:24, 27 May 2020
Stems retrorsely ascending to erect, (15–)25–65(–100) cm, puberulent proximally, glandular-pubescent distally. Leaves basal and cauline, sometimes basal absent or withering, ± leathery or not, glabrous or puberulent to pubescent; basal and proximal cauline petiolate, 35–120(–150) × 8–55(–76) mm, blade spatulate to oblanceolate or elliptic, base tapered, margins subentire or serrate to dentate, apex rounded to acute; cauline 4–8 pairs, sessile, 35–120(–150) × 10–45(–54) mm, blade ovate to lanceolate, base tapered to cordate-clasping, margins subentire to serrate or dentate, apex acute, rarely obtuse. Thyrses interrupted or continuous, cylindric, 10–30(–52) cm, axis densely glandular-pubescent, verticillasters 3–6(–8), cymes 2–6-flowered, 2 per node; proximal bracts ovate, 20–78 × 8–74 mm; peduncles and pedicels densely glandular-pubescent. Flowers: calyx lobes ovate to lanceolate, (8–)10–16 × 2.5–4.5 mm, densely glandular-pubescent; corolla white to pink or violet to purple, with reddish purple nectar guides, ventricose-ampliate, 35–55 mm, glandular-pubescent internally, tube 10–14 mm, throat abruptly inflated, slightly constricted at orifice, (15–)18–25 mm diam., rounded abaxially; stamens included, pollen sacs opposite, explanate, 1.3–1.6 mm, dehiscing completely, sutures smooth; staminode 23–30 mm, included or barely exserted, 0.6–0.9 mm diam., tip recurved, distal 20–25 mm sparsely to moderately villous, hairs white or golden yellow, to 3.5 mm; style 18–34 mm. Capsules 13–18 × 8–10 mm.
Distribution
Ariz., Ark., Colo., Ill., Iowa, Kans., Mo., N.Mex., Nebr., Ohio, Okla., Tex.
Discussion
Varieties 2 (2 in the flora).
Penstemon cobaea occurs widely in the central and southern Great Plains and into the Ozark Plateau. The species is a popular ornamental used in the breeding of the European or large-flowered hybrids of Penstemon (D. Lindgren and E. Wilde 2003). A chromosome count of n = 32 (R. Piotrowska 1934) appears doubtful.
Selected References
None.
Key
| 1 | Corollas white to pink. | Penstemon cobaea var. cobaea |
| 1 | Corollas violet to purple. | Penstemon cobaea var. purpureus |