Platanthera clavellata (Michx.) Luer 1972

Photo by Zachary Bradford

Flower Closeup

Photo by Jim Fowler and his P-Base Orchid North American Orchid Website

Drawing

Drawing by Correll

LATE

Common Name The Little Club Platanthera - in the US - The Small Greenwood Orchid

Flower Size

Found from eastern Canada south to Florida and west to Texas then north to Iowa and Minnesota in swampy forests and along woodland streams as a miniature to medium sized, cold growing terrestrial orchid with an erect, stout stem enveloped by 1 to rarely 2, keeled, lanceolate, basally clasping leaves and a loose, inflated sheath above that blooms in the late spring and summer on a terminal, lax, 6 to 14" [15 to 35 cm] long, 3 to 15 flowered, racemose inflorecence with a few lanceolate bracts and floral bracts that are as long as the ovary.

Synonyms Denslovia clavellata (Michx.) Rydb. 1931; Gymnadenia tridentata (Muhl.) Lindl. 1835; Gymnadenia tridentata var. clavellata Alph.Wood 1861; Gymnadeniopsis clavellata (Michx.) Rydb. 1901; Gymnadeniopsis clavellata var. ophioglossoides (Fernald) W.J.Schrenk ; 1977; Habenaria clavellata (Michx.) Spreng. 1826; Habenaria clavellata var. ophioglossoides Fernald 1946; Habenaria clavellata var. wrightii L.S.Olive 1951; Habenaria maritima Raf. 1833; Habenaria tridentata (Muhl.) Hook. 1823; *Orchis clavellata Michx. 1803; Orchis clavellata var. tridentata Muhl. 1813; Orchis tridentata Muhl. ex Willd. 1805; Peristylus clavellatus (Michx.) Kraenzl. 1898; Platanthera clavellata var. ophioglossoides (Fernald) P.M.Br. 1988; Platanthera clavellata f. slaughteri P.M.Br. 1995

ReferencesW3 Tropicos, Kew Monocot list , IPNI ;

Fl. Bor.-Amer. 2: 155 Michx 1803 as Orchis clavellata

Sp. Pl., ed. 4. 4: 41 Muhl ex Willd. 1805 as Orchis tridentata nom. illeg.

Cat. Pl. Amer. Sept.: 80 Muhl 1813 as Orchis clavellata var tridentata;

Exot. Fl. 1: t. 81 Hook. 1823 as Habenaria tridentata

Syst. Veg., ed. 16. 3: 689 Spreng 1826 as Habenaria clavellata

Herb. Raf.: 74 Raf. 1833 as Habenaria maritima;

Gen. Sp. Orchid. Pl.: 277 Lindley 1835 as Gymnadenia tridentata

Class-book Bot.: 683 Alph Wood. 1861 as Gymnadenia tridentata var clavellata;

Orchid. Gen. Sp. 1: 521 Kraenzlin 1898 as Peristylis clavellata

Man. Fl. N. States: 293 Rybd 1901 as Gymnadeniopsis clavellata

Studies in the Family Orchidaceae Vol 4: 29 Ames 1910 as Habenaria clavetella;

Brittonia 1: 85 Rybd. 1931 as Denslovia clavellata;

Rhodora 48: 161 Fernald 1946 as Habenaria clavellata var ophioglossoides;

Native Orchids of North America: 65 Correll 1950 as Habenaria clavellata

Native Orchids of North America: 66 Correll 1950 as Habenaria clavellata drawing fide;

Bull. Torrey Bot. Club 78: 291 L S Olive 1951 as Habenaria clavellata var wrightii;

Bull. Torrey Bot. Club 78: 290 L S Olive 1951 as Habenaria clavellata var wrightii photo fide

AOS Bulletin Vol 39 No 9 1970 as Habenaria clavellata photo good;

Die Orchideen 3 Auflage Bd 1 Sonderabdruck aus Schlechter Lieferung 4 193 to 256 Brieger, Maatsch and Senghas 1971 as Gymnadeniopsis clavellata;

*The Native Orchids of Florida: 148 Luer 1972 drawing/photos fide;

The Native Orchids of the United States and Canada Luer 1975 drawing/photos fide;

Orchidee (Hamburg) 28: 69 W.J.Schrenk 1977 as Gymnadeniopsis clavellata var ophioglossoides;

AOS Bulletin Vol 48 No 11 1979 photo fide;

Field Guide to the Orchids of North America Williams 1983;

Wild Fl. Notes 3: 21 P M Br. 1988 as P clavellata var ophioglossoides;

Schlechteriana Vol 4 No 4 1993;

Schlechteriana Vol 4 No 4 1993 as P clavellata var ophioglossoides;

N. Amer. Native Orchid J. 1: 200 P M Br. 1995 as P clavellata f slaughteri

AOS Bulletin Vol 75 No 2 2006 photo fide;

Wild Orchids Canad. Marit. & N. Gr. Lakes: 284 P M Br. 2006 as Gymnadeniopsis clavellata f wrightii

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