Hypericum gentianoides
orange-grass, orange-grass St. John's-wort, pineweed, pinweed St. Johnswort
internodes 4-lined.
appressed, sessile;
blade narrowly triangular-subulate to linear-subulate, scalelike, 1–4 × 0.4–0.6 mm, subcoriaceous to chartaceous, margins incurved, apex obtuse to rounded, basal vein 1, midrib unbranched.
usually pyramidal, 1–24-flowered, branching mostly monochasial.
3–5 mm diam.;
sepals lanceolate to narrowly oblong or linear-lanceolate, unequal, 1.5–2.5 × 0.4–0.8 mm, apex acute;
petals orange-yellow to golden yellow, oblong, 2–4 mm;
stamens 5–11, 5 separate or obscurely 5-grouped;
styles 0.8–1.2 mm;
stigmas broadly capitate.
narrowly cylindric-conic, 4–5 × 1–1.2 mm, length 2–2.7 times sepals.
0.4–0.8 mm;
testa markedly ribbed-scalariform.
= 24.
Hypericum gentianoides
Hypericum gentianoides is smaller in all parts than H. drummondii and more branched. The relatively long, narrow capsule is diagnostic, as are the relatively small, often scalelike leaves.
Hypericum sarothra Michaux and Sarothra hypericoides Nuttall are illegitimate names that pertain here.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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