Flora of North America species comparison

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Cuphea glutinosa

sticky waxweed
Habit Herbs perennial, 1–4 dm, with fibrous roots.
Stems

often several from base, erect to decumbent, branched or unbranched, glandular-hispid and puberulent.
Leaves

opposite, sessile or subsessile;

petiole 0–1 mm;

blade ovate-lanceolate to oblong or elliptic, 5–15[–20] × 2–7[–10] mm, base cuneate to rounded.
Racemes

leafy.
Pedicels

0–3 mm.
Flowers

alternate, solitary, interpetiolar;

floral tube green abaxially, purple adaxially, 5.5–8(–9) × 2–2.5 mm, sparsely glandular-hispid;

base rounded, 0.5 mm;

inner surface glabrous proximally, villous distal to stamens;

epicalyx segments thick, not terminated by a bristle;

sepals equal;

petals (2–)6, oblanceolate or oblong, unequal, 4 abaxial ones pale purple and 4–4.7 × 2.5–2.8 mm, 2 adaxial ones purple [deep purple or with deep purple midvein] and 4 × 1.5–1.9 mm;

stamens 11, reaching or surpassing sinus of sepals.
Seeds

8–13(–20), suborbiculate in outline, 1.5–2 × 1.5–1.7 mm, margin rounded.
2n

= 28, 32 (Bolivia), 34 (Paraguay).

Cuphea glutinosa
Phenology Flowering spring–summer.
Habitat Moist areas in open woods and pastures.
Elevation 10–200 m. (0–700 ft.)
Distribution
from FNA
LA; TX; South America [Introduced in North America]
[BONAP county map]
Discussion

First noted in the United States in 1884 in Vermilion Parish, Louisiana, Cuphea glutinosa is now more widespread in southern Louisiana and occurs in four counties in eastern Texas. The species is agamospermous in the United States, with sterile pollen but producing abundant seed. Sexually reproductive plants occur in eastern Brazil.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10.
Parent taxa Lythraceae > Cuphea
Sibling taxa
C. aspera, C. carthagenensis, C. strigulosa, C. viscosissima, C. wrightii
Synonyms Parsonsia glutinosa
Name authority Chamisso & Schlechtendal: Linnaea 2: 369. (1827)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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