Comments
(
Inglês
)
fornecido por eFloras
Lorandersonia peirsonii is known only from the upper elevations of the central Sierra Nevada and from collections in the western Great Basin, in northeastern Fresno, northwestern Inyo, and southern Mono counties, California.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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Inglês
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fornecido por eFloras
Perennials, cespitose, 5–20 cm; with branched, woody caudices surmounting taproots. Stems (clothed with marcescent leaf bases) glabrous, densely stipitate-glandular. Leaves: basal blades broadly spatulate, 30–80 × 12–25 mm; cauline blades oblong to linear, 28–42 × 7–11 mm, reduced distally; 1- or 3-nerved, margins coarsely and irregularly serrate to (distal) nearly entire, stipitate-glandular, faces glabrous, stipitate-glandular. Heads radiate, usually borne singly, sometimes 2–4. Peduncles 8–24 mm. Involucres broadly campanulate, (14–)19–28 × (12–)14–20 mm. Phyllaries 19–31(–44) in 3–4 series, 1- or weakly 3-nerved, ± equal, margins eciliate; outer and mid green, oblong, 10–12 × 2–4.5(–7) mm, foliaceous, apices obtuse to acute, faces stipitate-glandular; inner usually green, sometimes anthocyanic, linear, 10–12.5 × 1–2.5 mm, chartaceous proximally, margins scarious, fimbriate and/or stipitate-glandular distally, apices acute to acuminate, faces stipitate-glandular distally. Ray florets 16–20; laminae elliptic, 6.5–8 × 1.5–2.5 mm. Disc florets 44–63, barely exceeding involucres; corollas narrowly funnelform, 7.5–10.5 mm, lobes erect, 0.7–1.7 mm, lengths 1 / 10 – 1 / 5 corollas; anthers 3.3–3.8 mm; style-branch appendages subulate, 1.3–2.5 mm, stigmatic lines ca. 1.5 mm. Cypselae linear, 2.5–6 mm, 6–9-nerved, faces strigose to villous, often ± viscid; pappus bristles ± 30, brittle. 2n = 90.
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- cc-by-nc-sa-3.0
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
(
Inglês
)
fornecido por eFloras
Haplopappus eximius H. M. Hall subsp. peirsonii D. D. Keck, Madroño 5: 169. 1940; H. peirsonii (D. D. Keck) J. T. Howell; Tonestus peirsonii (D. D. Keck) G. L. Nesom & D. R. Morgan
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- cc-by-nc-sa-3.0
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Tonestus peirsonii
(
Inglês
)
fornecido por wikipedia EN
Tonestus peirsonii (syn. Lorandersonia peirsonii)[1] is a local-endemic species of flowering plant in the aster family known by the common names Inyo tonestus,[2] Peirson's serpentweed[3] and Peirson's tonestus.
Distribution
The plant is endemic to California, where it is known only from the Eastern High Sierra Nevada, and the White Mountains across Owens Valley to the east, both within Inyo National Forest. It grows in mountain habitat in subalpine and alpine climates at 2900–3700 m, preferring rock talus or niches in granite cliffs.[4] These images are from the original type location high in Rock Creek basin, Inyo County CA.[5]
Description
Tonestus peirsonii is a perennial herb producing a branching stem from a caudex and taproot unit, reaching up to about 20 centimeters tall and taking a clumpy form. The leaves are up to 8 centimeters long, variable in shape but usually broader toward the end, and with toothed edges.[2] Dried remnants of leaves or flowers from previous years may be visible.
The inflorescence is usually a single flower head, or a cluster of up to four heads, each up to 2 centimeters wide with green, rough-haired phyllaries in a broad (14-28mm) somewhat leaf-like involucre below the flower. The head bears 16-20 curling, bright yellow ray florets around a center containing many tubular disc florets. Blooming occurs in July and August.[4]
Inyo tonestus flower closeup
See also
References
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Tonestus peirsonii: Brief Summary
(
Inglês
)
fornecido por wikipedia EN
Tonestus peirsonii (syn. Lorandersonia peirsonii) is a local-endemic species of flowering plant in the aster family known by the common names Inyo tonestus, Peirson's serpentweed and Peirson's tonestus.
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- cc-by-sa-3.0
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- Wikipedia authors and editors
Lorandersonia peirsonii
(
Vietnamita
)
fornecido por wikipedia VI
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- Wikipedia tác giả và biên tập viên
Lorandersonia peirsonii: Brief Summary
(
Vietnamita
)
fornecido por wikipedia VI
Lorandersonia peirsonii là một loài thực vật có hoa trong họ Cúc. Loài này được (D.D.Keck) "Urbatsch, R.P.Roberts & Neubig" mô tả khoa học đầu tiên năm 2005.
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- cc-by-sa-3.0
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- Wikipedia tác giả và biên tập viên
