Difference between revisions of "Muhlenbergia pectinata"
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{{Treatment/ID | {{Treatment/ID | ||
|accepted_name=Muhlenbergia pectinata | |accepted_name=Muhlenbergia pectinata | ||
| − | |accepted_authority= | + | |accepted_authority=C.O. Goodd. |
|publications= | |publications= | ||
|common_names=Combtop muhly | |common_names=Combtop muhly | ||
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-->{{Treatment/Body | -->{{Treatment/Body | ||
|distribution=Ariz. | |distribution=Ariz. | ||
| − | |discussion=<p>Muhlenbergia pectinata grows on rock outcrops, rocky cliffs, canyon walls, steep slopes, and road cuts, at elevations of 45-2400 m in thorn-scrub forests, gramma grasslands, and pine-oak woodlands. It is almost entirely restricted to vertical surfaces that are seasonally wet. Its range extends from southeastern Arizona to Oaxaca, Mexico.</p> | + | |discussion=<p><i>Muhlenbergia pectinata</i> grows on rock outcrops, rocky cliffs, canyon walls, steep slopes, and road cuts, at elevations of 45-2400 m in thorn-scrub forests, gramma grasslands, and pine-oak woodlands. It is almost entirely restricted to vertical surfaces that are seasonally wet. Its range extends from southeastern Arizona to Oaxaca, Mexico.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Muhlenbergia pectinata | name=Muhlenbergia pectinata | ||
| − | + | |authority=C.O. Goodd. | |
| − | |authority= | ||
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Linda A. Vorobik;Annaliese Miller | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Ariz. | |distribution=Ariz. | ||
|reference=None | |reference=None | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_728.xml |
|subfamily=Poaceae subfam. Chloridoideae | |subfamily=Poaceae subfam. Chloridoideae | ||
|tribe=Poaceae tribe Cynodonteae | |tribe=Poaceae tribe Cynodonteae | ||
Latest revision as of 19:50, 6 December 2021
Plants annual. Culms 10-33 cm, erect or decumbent, sometimes rooting at the lower nodes; internodes glabrous. Sheaths usually longer than the internodes, glabrous, margins sparsely hairy distally, hairs to 1 mm, coarse; ligules 0.3-0.9 mm, membranous, truncate, ciliate; blades 1-6 cm long, 0.6-2 mm wide, flat to loosely involute, appressed-pubescent to sparsely pilose. Panicles 4-12 cm long, 0.5-2.6(4) cm wide; primary branches 2-3.5 cm, appressed or diverging up to 70° from the rachises; pedicels 1-3 mm, glabrous, appressed; disarticulation above the glumes. Spikelets 2.5-5 mm, borne singly. Glumes glabrous, 1-veined, acute to acuminate, unawned or awned, awns to 1.5 mm; lower glumes 0.8-1.7 mm, entire; upper glumes 1-2(3) mm; lemmas (2.5)3-4.5(5) mm, subulate to lanceolate, calluses appressed-pubescent, lemma bodies appearing 5-veined (the intermediate "veins" are actually rows of short barbs on top of folded epidermal ridges), lateral veins occasionally ciliate, apices acuminate, awned, awns 10-32 mm, slender, flexuous; paleas 2.4-4.4 mm, narrowly lanceolate, glabrous, acuminate; anthers 0.3-0.6 mm, yellowish. Caryopses 0.6-3.1 mm, narrowly fusiform, light brownish. 2n = 20.
Discussion
Muhlenbergia pectinata grows on rock outcrops, rocky cliffs, canyon walls, steep slopes, and road cuts, at elevations of 45-2400 m in thorn-scrub forests, gramma grasslands, and pine-oak woodlands. It is almost entirely restricted to vertical surfaces that are seasonally wet. Its range extends from southeastern Arizona to Oaxaca, Mexico.
Selected References
None.