Stemodia durantifolia
Stemodia lanata
purple stemodia, white woolly stemodia, white-woolly twintip
gray-woolly twintip, woolly twintip
erect or ascending, 10–100 cm, glandular- and eglandular-hairy.
prostrate or decumbent, 5–10 cm, densely white-tomentose.
opposite or whorled proximally, opposite distally;
blade lanceolate to oblong, 15–50(–70) × 3–15(–20) mm, base clasping, margins serrate distally, flat, surfaces sparsely hairy.
opposite;
blade elliptic to obovate, 10–30 × 5–10 mm, base not auriculate or clasping, margins slightly serrate distally, slightly revolute, surfaces densely white-tomentose.
terminal, spikes, racemes, or flowers 1–4 per axil;
bracts 4–5 mm.
axillary, flowers 1 or 2 per axil;
bracts 0 mm.
0–8(–15) mm;
bracteoles [1 or]2, 2–3.5 mm.
0 mm;
bracteoles 1 or 2, 1–2 mm.
calyx lobes narrowly lanceolate, 3–5 mm;
corolla blue-purple, 5–8(–10) mm, puberulent, lobes 1–2 × 1 mm;
style 2–4 mm.
calyx lobes narrowly triangular, 2–3(–5) mm;
corolla blue-purple to lavender, 6–7 mm, glabrous or puberulent, lobes 1.5–2 × 1.5–2 mm;
style 1–2 mm.
4–5 mm;
style often persistent.
2–3 mm;
style not persistent.
ellipsoid, 2–3 mm.
ellipsoid, 0.2–0.5 mm.
Stemodia durantifolia
Stemodia lanata
Stemodia durantifolia might be confused with S. maritima Linnaeus, which is found in the Caribbean and along the coast in Mexico and elsewhere in the New World tropics. Stemodia maritima has corollas less than 5 mm and stalked pollen sacs. Florida plants of S. durantifolia are introduced.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Stemodia lanata is sometimes called S. tomentosa (Miller) Greenman & C. H. Thompson, a later homonym of S. tomentosa G. Don 1838.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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