Spiranthes praecox (Walter) S.Watson

Greenvein lady's tresses (en)

Species

Angiosperms > Asparagales > Orchidaceae > Spiranthes

Characteristics

Plants 20–75 cm. Roots numerous, slender, mostly to 0.8 cm diam. Leaves persisting through anthesis, to 7, primarily basal reduced to sheathing bracts upward on stem, spreading, linear to linear-lanceolate, 10–25 × 1–5 cm. Spikes loosely to tightly spiraled, 4–7 flowers per cycle of spiral or nearly secund; rachis sparsely pubescent, some trichomes capitate, glands obviously stalked. Flowers white, rarely green; sepals distinct to base, 5.5–10 mm × 2–3 mm; lateral sepals clasping lip, appearing tubular; petals adhering to dorsal sepal, linear, 5–10 × 1–2 mm, apex subacute; lip oblong, 5.5–11 × 2–6 mm, apex dilated, margins often crenulate or toothed, glabrous on adaxial distal surface; veins raised, green, rarely cream colored, prominent, branches divergent, extending nearly to apex; basal calli straight, long-pointed, slender, mostly to 1 mm; viscidium linear-lanceolate; ovary mostly 5 mm. Seeds monoembryonic.
More
Plants 2–8 dm; basal lvs narrow, to 20 cm, 3–10 mm wide; cauline sheaths 4–6, with blades to 10 cm; infl elongate, its axis minutely glandular-hairy, the fls closely spaced in a single spiral or the spiral sometimes so tight as to create 3 or 4 vertical files of fls, these spreading or slightly deflexed, urceolate-cylindric, 5–10 mm, mainly white, the oblong lip with a yellowish center and prominent divergent green veins, glabrous below and distally so above, its basal callosities 0.5–1.2 mm, higher than thick. Moist or wet open places on the coastal plain from N.J. to Fla. and Tex. June, July.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
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Mature height (meter) 0.2 - 0.78
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Environment

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Hardiness (USDA) 4-9

Usage

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Cultivation

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Images

Spiranthes praecox unspecified picture

Distribution

Spiranthes praecox world distribution map, present in Åland Islands, Georgia, Nicaragua, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:242792-2
WFO ID wfo-0000313380
COL ID 4Z6ZQ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Spiranthes praecox f. albolabia Triorchos praecox Ibidium praecox Limodorum praecox Spiranthes praecox