Difference between revisions of "Hypericum suffruticosum"
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==Taxonomic notes== | ==Taxonomic notes== | ||
Synonym: ''Ascyrum pumilum'' Michaux | Synonym: ''Ascyrum pumilum'' Michaux | ||
Revision as of 12:55, 24 August 2016
| Hypericum suffruticosum | |
|---|---|
| |
| Photo was taken by Gil Nelson | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta - Flowering plants |
| Class: | Magnoliopsida – Dicotyledons |
| Order: | Theales |
| Family: | Clusiaceae ⁄ Guttiferae |
| Genus: | Hypericum |
| Species: | H. suffruticosum |
| Binomial name | |
| Hypericum suffruticosum P. Adams & N. Robson | |
| |
| Natural range of Hypericum suffruticosum from USDA NRCS Plants Database. | |
Common name: Pineland St. Johnswort
Contents
Taxonomic notes
Synonym: Ascyrum pumilum Michaux
Description
Hypericum suffruticosum is a perennial shrub.
“Usually glabrous herbs or shrubs. Leaves usually punctate, simple, opposite, entire, usually sessile or subsessile, exstipulate. Inflorescence basically cymose; flowers perfect, regular, bracteates, subsessile or short-pedicellate, sepals 2, 4, or 5, persistent; petals 4 or 5, usually marcescent, yellow or pink; stamens 5-numerous, separate or connate basally forming 3-5 clusters or fascicles, filaments usually persistent; carpels 2-5, stigmas and styles separate or fused, ovary superior, 1-locular or partly or wholly 2-5 locular, placentation axile or parietal. Capsules basically ovoid, longitudinally dehiscent, styles usually persistent; seeds numerous, lustrous, areolate, cylindric or oblong. In general our species form a polymorphic complex with many intergrading taxa.” [1]
"Small, usually decumbent shrub, 7-15 cm tall, stems wing-angled. Leaves oblong, elliptic, or slightly obovate, 1-8 mm long, 1-3 mm wide, obtuse, base jointed or notched. Flowers usually solitary, occasionally in cymules; bracts paired, basal; pedicels reflexed, 6-13 mm long. Outer sepals 2, ovate or widely elliptic, 5-9 mm long, 4.5-7 wide, acute, inner sepals usually absent; petals 4, obovate, 5-7 mm long; styles 2, usually separate, ca. 1.5 mm long, ovary 1-locular. Capsules ovoid or ellipsoid, ca. 3 mm long and 2 mm broad; mature seeds not seen." [1]
Distribution
Ecology
Habitat
H. suffruticosum occurs in longleaf pine flatwoods, as well as disturbed areas like roadsides. [2] It is found in dry sandy soil most commonly. [2] Associated species include Pinus palutris. [2]
Phenology
Flowering has been observed in March and August. [2]
Seed dispersal
According to Kay Kirkman, a plant ecologist, this species disperses by gravity. [3]
Fire ecology
This species has been found in habitat that is often maintained by frequent fire. [2]
Conservation and management
Cultivation and restoration
Photo Gallery
References and notes
- ↑ 1.0 1.1 Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 709-710. Print.
- ↑ 2.0 2.1 2.2 2.3 2.4 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: R. F. Doren, Leon Neel, Robert K. Godfrey, R. Komarek, and Steve L. Orzell. States and Counties: Florida: Liberty and Nassau. Georgia: Baker and Thomas.
- ↑ Kay Kirkman, unpublished data, 2015.
