Difference between revisions of "Hypericum nudiflorum"
Sp. Pl. 3: 1456. 1802.
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|name=Brathydium nudiflorum | |name=Brathydium nudiflorum | ||
|authority=(Michaux ex Willdenow) K. Koch | |authority=(Michaux ex Willdenow) K. Koch | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Myriandra nudiflora | |name=Myriandra nudiflora | ||
|authority=(Michaux ex Willdenow) Spach | |authority=(Michaux ex Willdenow) Spach | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Hypericaceae;Hypericum;Hypericum sect. Myriandra;Hypericum nudiflorum | |hierarchy=Hypericaceae;Hypericum;Hypericum sect. Myriandra;Hypericum nudiflorum | ||
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name=Hypericum nudiflorum | name=Hypericum nudiflorum | ||
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|authority=Michaux ex Willdenow | |authority=Michaux ex Willdenow | ||
|rank=species | |rank=species | ||
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|publication year=1802 | |publication year=1802 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V6/V6_132.xml |
|genus=Hypericum | |genus=Hypericum | ||
|section=Hypericum sect. Myriandra | |section=Hypericum sect. Myriandra | ||
Latest revision as of 23:19, 5 November 2020
Subshrubs, erect, usually loosely branched with branches ascending, 5–20 dm. Stems: internodes narrowly 4-winged at first, then terete. Leaf blades ovate-lanceolate or elliptic to linear-oblong, 30–70 × 7–25 mm, base not articulated, cuneate to subcordate, margins plane, apex obtuse to rounded, midrib with to 6 pairs of branches. Inflorescences corymbiform to rounded-pyramidal, 7–45-flowered, narrowly branched, sometimes with 1–7(–40)-flowered dichasia from 1–3 proximal nodes. Flowers 15–20 mm diam.; sepals deciduous, not enclosing capsule, 5, oblanceolate-spatulate to narrowly triangular, unequal to subequal, 2–5 × 1–1.5 mm; petals 5, pale or coppery yellow, oblanceolate-oblong to elliptic-oblong, 6–8(–10) × 3–4 mm, length 2–3 times sepals; stamens persistent, 80; ovary 3(–4)-merous, placentation incompletely axile. Capsules broadly ellipsoid to ovoid-globose, 3.5–7 × 3–5 mm. Seeds markedly carinate, 1.5–2 mm; testa ± scalariform-reticulate. 2n = 18.
Phenology: Flowering summer (Jun–late Aug).
Habitat: Stream banks, moist woodland, swamps
Elevation: 0–1000 m
Distribution
Ala., Fla., Ga., La., Miss., N.C., S.C., Tenn., Va.
Discussion
See under 15. Hypericum apocynifolium for differences between it and H. nudiflorum, which has a more eastern distribution. Records from Texas probably are referable to H. apocynifolium.
Hypericum nudiflorum probably is now extirpated in Louisiana.
Selected References
None.