Description
(
anglais
)
fourni par eFloras
Annuals, 6–15 cm, glandular-pubescent, pilose, and furfur-aceous. Stems erect and spreading. Leaf blades rounded-rhombic, 7–14 × 6–14 mm, margins entire (faces, at least abaxial, with straight, multicellular hairs 2–3+ mm). Peduncles 4–20 mm. Involucres narrowly cylindric, 7–9 mm. Phyllaries ca. 13, outer persistent, 5, lanceolate, tips erect, inner falling, 8, lance-linear, tips erect. Florets 9–14; corollas yellow, often purplish at tips, ca. 8 mm. Cypselae 4–5 mm; pappi of ca. 150 subequal bristles in 2–4 series, 6–7 mm. 2n = 34.
- licence
- cc-by-nc-sa-3.0
- droit d’auteur
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Comprehensive Description
(
anglais
)
fourni par North American Flora
Psathyrotes pilifera A Gray, Proa Am. Acad. 19: 50. 1880
A low winter-annual, or peftafM ih r . miial ; Item diffu tlj branched from the bale, 5-15
cm high, rurfuraceoai and with ■ few kmget hair 1-2 cm. long, Furfuraceoui and
ciliate, leaf-blade, rounded ovale, cuneatC at t li. base, entire, 6 I s mm long and aboill If broad, ciliate on the margins and veins, otherwise furfuraceous; peduncles 1 cm. long or less; involucre 8-10 mm. high, 5-6 mm. broad; bracts lanceolate, furfuraceous and ciliate, the outer obtuse, the inner acute; corolla 6-7 mm. long, the tube less than 1 mm. long, the lobes triangular, villous without, 0.5 mm. long; achenes nearly cylindraceous, tapering downward, strongly ribbed, short -hispid; pappus-bristles 5 mm. long.
Type locality: South Utah, near Kanab. Distribution: Southern Utah and northern Arizona.
- citation bibliographique
- Per Axel Rydberg. 1927. (CARDUALES); CARDUACEAE; LIABEAE, NEUROLAENEAE, SENECIONEAE (pars). North American flora. vol 34(4). New York Botanical Garden, New York, NY
Psathyrotes pilifera: Brief Summary
(
vietnamien
)
fourni par wikipedia VI
Psathyrotes pilifera là một loài thực vật có hoa trong họ Cúc. Loài này được A.Gray miêu tả khoa học đầu tiên.
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- cc-by-sa-3.0
- droit d’auteur
- Wikipedia tác giả và biên tập viên