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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

SPIRANTHES LADIES TRESSES
Leaf: at flower 0 or ± basal. Inflorescence: spike, generally dense, flowers in spiral; bracts leaf-like, < to > flowers, gradually reduced upward, linear to oblong. Flower: sepals, lateral petals narrow-lanceolate; upper sepal ± fused to lateral petals, together hood-like, enclosing column, lower ± free, ± = lip, adherent to hood; lip not spurred, pouch-like, deeply grooved below middle, concave above; column < lip, tip with anther on back. Fruit: spreading to ascending.
± 40 species: especially America, also Japan, Australia, New Zealand. (Greek: coiled flowers) Plants in Sierra Nevada may be hybrids between species below, for which Spiranthes stellata P.M. Brown et al. might be correct.
Unabridged references: [Sheviak 1990 Rhodora 92:213–231]
Unabridged note: Plants in Sierra Nevada may be hybrids between species below, for which Spiranthes stellata P.M. Brown, Dueck, & K.M. Cameron might be correct.

Key to Spiranthes

1. Lip lanceolate to ± ovate, tip puberulent above; perianth ± yellow (cream); upper sepal, lateral petals generally spreading, not forming hood ..... S. porrifolia

1' Lip ± violin-shaped, tip glabrous above; perianth ± white (cream); upper sepal, lateral petals forming hood ..... S. romanzoffiana

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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