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Scientific Name
Spermacoce glabra
Scientific Name w/ Auth.
Spermacoce glabra Michx.
Park
Chesapeake and Ohio Canal National Historical Park (CHOH)
Sensitive
No
Park Accepted
Accepted
Record Status
Approved
Park Preferred Common Names
SMOOTH BUTTONWEED
Park Synonyms
Taxonomic Hierarchy
| Kingdom | Plantae |
| Subkingdom | Viridiplantae |
| Infrakingdom | Streptophyta |
| Superdivision | Embryophyta |
| Division | Tracheophyta |
| Subdivision | Spermatophytina |
| Class | Magnoliopsida |
| Superorder | Asteranae |
| Order | Gentianales |
| Family | Rubiaceae |
| Genus | Spermacoce |
| Species | Spermacoce glabra |
Occurrence
Present
Occurrence Notes
Data Source: Bartgis, 1993;TNC, 1999; Wiegand, 1999; Wiegand, 2001
Nativeness
Native
Nativeness Notes
Data Source: Helen Hamilton
Abundance
Unknown
Abundance Notes
Data Source: Helen Hamilton
Management Tags
-
Management Priority
Wiegand, 2001: Endangered in the state of Maryland;
Threatened Endangered Status
State Species of Concern statuses
Ozone Sensitive Status
NatureServe GRank
NatureServe SRank
Observations
0
References
Vouchers
0
External Links
0
Evidence counts shown include evidence for related synonyms.
Created By
MTK-NCR
Created Date
8/17/2000 12:00:00 AM
Last Modified By
Helen Hamilton
Last Modified Date
12/22/2008 7:27:10 AM
Notes
Park Species Detail: Bartgis, 1993: State Endangered plant, found in Potomac Fall-Line. Wiegand, 2001: The previously known population of Buttonweed (Spermacoce glabra) in the Cropley area was successfully updated (from Sandy Hook, Maryland to District of Columbia line). Several dense colonies containing approximately 200 stems grow in a 5x5 meter area of rocky scour bar habitat. Heavy deer browse on the species at this site is an immediate threat to the population. The occurrence of this species in the Potomac Gorge is the only known population in Maryland and may represent the northeastern extremity of the species' range. Wiegand, 1999: Plant species documented in the survey area (from Great Falls, Maryland, downriver to the District of Columbia) during this survey. Currently listed in Maryland as endangered or endangered/extirpated. The previously known population of Buttonweed (Spermacoce glabra), a state-endangered species, in the Cropley area was successfully updated. Heavy deer browse on the species at this site is an immediate threat to the population. The occurrence of this species in the Potomac Gorge is the only known population in Maryland and may represent the northeastern extremity of the species range., Park Species Data Source: Bartgis, 1993;TNC, 1999;Wiegand, 1999;Wiegand, 2001
