Difference between revisions of "Penstemon murrayanus"
Bot. Mag. 63: plate 3472. 1836.
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|elevation=10–200 m. | |elevation=10–200 m. | ||
|distribution=Ark.;La.;Okla.;Tex. | |distribution=Ark.;La.;Okla.;Tex. | ||
| − | |discussion=<p>F. S. Crosswhite and C. D. Crosswhite (1981) hypothesized that Penstemon murrayanus was derived from P. grandiflorus, with which it shares many morphologic features. The two species have been crossed artificially, yielding hybrids that once were commercially popular (G. Viehmeyer 1958; R. Nold 1999). Molecular data support the sister relationship of P. murrayanus and P. grandiflorus (C. A. Wessinger et al. 2016).</p> | + | |discussion=<p>F. S. Crosswhite and C. D. Crosswhite (1981) hypothesized that <i>Penstemon murrayanus</i> was derived from <i>P. grandiflorus</i>, with which it shares many morphologic features. The two species have been crossed artificially, yielding hybrids that once were commercially popular (G. Viehmeyer 1958; R. Nold 1999). Molecular data support the sister relationship of <i>P. murrayanus</i> and <i>P. grandiflorus</i> (C. A. Wessinger et al. 2016).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1836 | |publication year=1836 | ||
|special status=Selected by author to be illustrated;Endemic | |special status=Selected by author to be illustrated;Endemic | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V17/V17_316.xml |
|genus=Penstemon | |genus=Penstemon | ||
|subgenus=Penstemon subg. Penstemon | |subgenus=Penstemon subg. Penstemon | ||
Revision as of 14:59, 18 September 2019
Stems ascending to erect, 50–100(–150) cm, glabrous. Leaves basal and cauline, glabrous; basal and proximal cauline 40–100 × (8–)14–30 mm, blade spatulate to ovate, base tapered, apex rounded to obtuse, rarely retuse; cauline 5–9 pairs, sessile, 12–110 × 16–70 mm, blade oblong to ovate, base clasping to connate-perfoliate, apex obtuse to acute. Thyrses interrupted, cylindric, 15–50 cm, axis glabrous, verticillasters 6–10(–16), cymes 1–5-flowered; proximal bracts ovate, 9–45 × 14–40 mm; peduncles and pedicels glabrous. Flowers: calyx lobes lanceolate, 4.5–7 × 1.8–2.9 mm, margins entire, narrowly scarious, glabrous; corolla red, without nectar guides, tubular-funnelform, 32–36 mm, glabrous externally, glabrous internally, tube 8–11 mm, throat abruptly inflated, 9–12 mm diam., rounded abaxially; stamens exserted, pollen sacs opposite, explanate, 1.3–1.7 mm, sutures smooth; staminode 18–20 mm, exserted, 0.2–0.3 mm diam., tip straight to recurved, glabrous; style 24–31 mm. Capsules 9–13 × 6–10 mm.
Phenology: Flowering Mar–Jun.
Habitat: Sandy soils, deciduous and pine woodlands, sandhill prairies.
Elevation: 10–200 m.
Distribution
Ark., La., Okla., Tex.
Discussion
F. S. Crosswhite and C. D. Crosswhite (1981) hypothesized that Penstemon murrayanus was derived from P. grandiflorus, with which it shares many morphologic features. The two species have been crossed artificially, yielding hybrids that once were commercially popular (G. Viehmeyer 1958; R. Nold 1999). Molecular data support the sister relationship of P. murrayanus and P. grandiflorus (C. A. Wessinger et al. 2016).
Selected References
None.