Difference between revisions of "Perityle saxicola"
SouthW. Naturalist 4: 204. 1959.
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|discussion=<p>Of conservation concern.</p><!-- | |discussion=<p>Of conservation concern.</p><!-- | ||
| − | --><p>Perityle saxicola occurs in the area of Tonto National Monument and Roosevelt Dam in central Arizona. The 2–3-pinnately dissected leaves with long-linear to flat-filiform lobes distinguish it from the similar P. gilensis with its broader leaf lobes.</p> | + | --><p><i>Perityle saxicola</i> occurs in the area of Tonto National Monument and Roosevelt Dam in central Arizona. The 2–3-pinnately dissected leaves with long-linear to flat-filiform lobes distinguish it from the similar <i>P. gilensis</i> with its broader leaf lobes.</p> |
|tables= | |tables= | ||
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|publication year=1959 | |publication year=1959 | ||
|special status= | |special status= | ||
| − | |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/V19-20-21/V21_820.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae | ||
Revision as of 15:37, 18 September 2019
Perennials or subshrubs, 20–40 cm; glabrate or puberulent. Leaves: petioles 10–30 mm; blades (2–)3-pinnate, 15–55 × 10–50 mm, lobes linear to flat-filiform, scarcely broadened distally. Heads borne singly or (2–4) in loose, corymbiform arrays, 7.5–10 × 10–14 mm. Peduncles 1–3 mm. Involucres broadly campanulate to hemispheric. Phyllaries 14–25, linear-lanceolate to lanceolate, 5–7 × 0.5–1 mm. Ray florets 10–17; corollas yellow, laminae oblong to oblong-ovate, 4–6 × 2–3.2 mm. Disc florets 75–200; corollas yellow, tubes 1–1.2 mm, throats narrowly tubular to narrowly funnelform, 2–2.5 mm, lobes ca. 0.7 mm. Cypselae narrowly oblanceolate to narrowly oblong-elliptic, 2.8–3.2 mm, margins notably calloused, sparsely short-hairy; pappi 0 or of 1(–2) bristles (2–)4–5 mm. 2n = 34.
Phenology: Flowering spring–fall.
Habitat: Crevices of igneous rocks
Elevation: 700–1100 m
Discussion
Of conservation concern.
Perityle saxicola occurs in the area of Tonto National Monument and Roosevelt Dam in central Arizona. The 2–3-pinnately dissected leaves with long-linear to flat-filiform lobes distinguish it from the similar P. gilensis with its broader leaf lobes.
Selected References
None.