Zephyranthes treatiae

S. Watson

Proc. Amer. Acad. Arts 14: 300. 1879

Synonyms: Atamosco treatiae (S. Watson) Greene Zephyranthes atamasca var. treatiae (S. Watson) Meerow
Treatment appears in FNA Volume 26. Treatment on page 298. Mentioned on page 299.
Revision as of 19:32, 24 September 2019 by Volume Importer (talk)
Leaf blade dull green, to 4 mm wide. Spathe (1.8–)2–3.3(–3.6) cm. Flowers erect to inclined; perianth mostly white to pink, color deepening with age, funnelform, (6–)6.6–9.5(–11) cm; perianth tube green, (1.7–)2–3(–3.1) cm, increasing in diam., at least 1/4 perianth length, ± equaling (2/3–11/4) filament length, ca. 2/3–11/3 spathe length; tepals usually reflexed; stamens diverging, appearing equal; filaments filiform, (1.6–)2–4(–4.6) cm; anthers 3–6(–8) mm; style longer than perianth tube; stigma 3-fid, exserted more than 2 mm beyond anthers; pedicel 0–1(–1.2) cm, shorter than spathe. 2n = 24.

Phenology: Flowering mid winter–spring (Jan–Apr).
Habitat: Peaty-sandy soil, usually associated with wet inlands or former pineland sites
Elevation: 0–100 m


It has generally been thought that Zephyranthes atamasca and Z. treatiae are distinguishable only by differences in leaves and habitat, and that their flowers are not significantly different. However, the greater length of the perianth tube compared with that of the filaments in Z. treatiae readily separates that species from Z. atamasca.

Selected References


Lower Taxa