Spiranthes laciniata (Small) Ames - Lace-lipped Ladies' Tresses


 

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Spiranthes laciniata - (image 1 of 6)

 

Taxonomy

Family: Orchidaceae

Habitat

Wet pine savanna.

Associates

 

 Distribution

On the coastal plain from NJ to FL and TX.

Morphology

Herbaceous perennial 20-100 cm; basal leaves 3-10(-15) mm wide and up to 30 cm long; cauline sheaths 4-6, the lower with well developed blade; inflorescence 5-16 cm long, the axis minutely glandular-hairy, the flowers closely spaced in a single straight row or evident spiral, spreading, urceolate-cylindric, 6-10 mm long, mainly white; lip recurved-deflexed, with a yellow center, shallowly lacerate-fringed around the apex, papillate on the lower surface, the basal callosities 0.7-1.5 mm long, higher than thick

Notes

Flowers late August to early September in NJ

Wetland indicator: OBL

The gap between the lateral sepals and the lower surface of the lip in profile has a distinctive half moon shape.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY

 


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 Michael Hough 2018