Difference between revisions of "Hydrolea spinosa var. spinosa"
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Latest revision as of 13:17, 24 November 2024
Herbs or small shrubs, erect or decumbent, to 20 dm, unbranched to broadly branched. Stems green, brown, or purple, pubescent or hispid-hirsute, occasionally glabrous, usually densely covered with short, glandular trichomes; thorns 1 or 2 per node or absent, 4–30 × 0.4–2 mm. Leaf blades ovate to lanceolate, occasionally linear, 1–12 × 0.2–3 cm, base attenuate to acute, margins entire or serrulate, surfaces puberulent to hispid-hirsute, with or without glandular trichomes. Inflorescences terminal, narrow or broadly branching, leafy panicles or clustered at branch tips, 20–100-flowered. Flowers: sepals lanceolate, 6–14 × 1.5–3.5 mm, puberulent to hispid-hirsute, with glandular trichomes; corolla blue, rarely white, petals 5–17 × 2–12 mm; ovary puberulent, upper 1/2 usually glandular-pubescent; styles 2–4, 1.5–13 mm, glandular-pubescent toward bases. Capsules globose to ovoid, 3.5–8 × 3–7 mm, upper 1/2 puberulent or glandular-pubescent. Seeds ovoid to cylindric, symmetric, 0.4–0.7 × 0.2–0.3 mm. 2n = 20, 40.
Phenology: Flowering year-round.
Habitat: Wet pond margins, open flood plains.
Elevation: 0–10 m.
Distribution
Tex., Mexico, Central America, South America (south to Argentina).
Discussion
In the flora area, var. spinosa is known from Cameron County. Specimens vary in pubescence, thorniness, and leaf shape and size.
Selected References
None.