Difference between revisions of "Hypericum suffruticosum"
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===Phenology=== <!--Timing off flowering, fruiting, seed dispersal, and environmental triggers. Cite PanFlora website if appropriate: http://www.gilnelson.com/PanFlora/ --> | ===Phenology=== <!--Timing off flowering, fruiting, seed dispersal, and environmental triggers. Cite PanFlora website if appropriate: http://www.gilnelson.com/PanFlora/ --> | ||
Flowering has been observed in March and August (FSU Herbarium). | Flowering has been observed in March and August (FSU Herbarium). | ||
| + | ===Seed dispersal=== | ||
| + | According to Kay Kirkman, a plant ecologist, this species disperses by gravity. <ref name="KK"> Kay Kirkman, unpublished data, 2015. </ref> | ||
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===Fire ecology=== <!--Fire tolerance, fire dependence, adaptive fire responses--> | ===Fire ecology=== <!--Fire tolerance, fire dependence, adaptive fire responses--> | ||
This species has been found in habitat that is often maintained by frequent fire (FSU Herbarium). | This species has been found in habitat that is often maintained by frequent fire (FSU Herbarium). | ||
Revision as of 14:32, 12 April 2016
| Hypericum suffruticosum | |
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| 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 | |
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| 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.” – Radford et al 1964
"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." - Radford et al 1964
Distribution
Ecology
Habitat
H. suffruticosum occurs in longleaf pine flatwoods, as well as disturbed areas like roadsides (FSU Herbarium). It is found in dry sandy soil most commonly (FSU Herbarium). Associated species include Pinus palutris (FSU Herbarium).
Phenology
Flowering has been observed in March and August (FSU Herbarium).
Seed dispersal
According to Kay Kirkman, a plant ecologist, this species disperses by gravity. [1]
Fire ecology
This species has been found in habitat that is often maintained by frequent fire (FSU Herbarium).
Conservation and Management
Cultivation and restoration
Photo Gallery
References and notes
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.
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.
- ↑ Kay Kirkman, unpublished data, 2015.
