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Nomenclature
Hypericum albiflorum (Hub.-Mor.) N. Robson
Nomenclature
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Genus: HypericumSection: sect. Origanifolia
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Synonyms: 2
DIAGNOSTIC DESCRIPTION
Perennial herb 0.25–0.54 m tall, erect from taproot, with stems up to c. 4, unbranched below inflorescence. Stems terete or rarely slightly 2-lined below leaf, black-gland-dotted, glabrous, green; internodes 18–30 mm, exceeding leaves. Leaves sessile to 0.5 mm petiolate, erect to ascending, green above, glaucous beneath; lamina 20–35 × 2–8 mm, narrowly oblong or oblanceolate to linear, discolorous, chartaceous, glabrous; apex rounded, margin plane to recurved?, base rounded to cuneate; venation: 2–3 pairs of main veins from lower half of midrib, not visibly branching or reticulating; laminar glands pale, obscure and black, scattered; marginal glands black, subregular. Inflorescence c. 20–50-flowered from 8–9 nodes, sometimes with flowering branches from up to 3 nodes below, the whole narrowly pyramidal to narrowly cylindric; pedicels 1–2 mm, relatively slender; bracts and bracteoles linear, shortly black-glandular-ciliate or usually entire. Flowers 16–24 mm in diam.; buds ovoid to cylindric, subacute to obtuse. Sepals subequal, basally united, 2.5–3.5 × 0.7–1 mm, oblong, obtuse to rounded, glandular-ciliate; veins 3, unbranched, ± impressed (‘sepals ribbed’); laminar glands black and/or pale, linear, proximal and black, elongate to punctiform, distal; marginal glands black. Petals white or white veined red or wholly suffused pink or rarely pale yellow, 8–11 × 3–4 mm, c. 3 × sepals, oblanceolate, rounded, apiculus absent; laminar glands pale, linear to punctiform and sometimes 1(–2) black, punctiform; marginal glands black, regular. Stamens c. 35, longest 6–c. 8.5 mm, 0.75 × petals. Ovary c. 1.8 × 0.7 mm, narrowly pyramidal-ovoid; styles 3, c. 3 mm, 1.6 × ovary. Capsule and Seeds not seen.