Proctor's Ironweed - Center For Plant Conservation
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Plant Profile

Proctor's Ironweed (Lepidaploa proctorii)

  • Global Rank: N/A
  • Legal Status: N/A
  • Family: Asteraceae
  • State: PR
  • Nature Serve ID: XXXXXX
  • Date Inducted in National Collection:
Description:

Vernonia proctorii is a small erect shrub which may reach a height of 1.5 meters. The stems and trunk are densely pubescent with silvery uniseriate hairs and with a knobby appearance due to the persistent petiole bases. Leaves are alternate, ovate to orbicular, subsessile or with the petioles appressed to the stem, and from 1.5 to 3.5 cm long and 1.0 to 2.6 cm wide. The upper blade surface is green to olive-green and moderately strigose with scattered glistening globular trichomes. The lower surface is grayish-green, sometimes becoming rusty with age, and densely sericeous. The leaf margins are densely ciliate with silvery hairs. Flowers are borne in terminal clusters of 2 to 5 heads, each approximately 3 mm in length, and bright purple in color. Achenes are from 2 to 3 mm long and with silvery hairs. (Federal Register 1993.)  

Where is Proctor's Ironweed (Lepidaploa proctorii) located in the wild?

Habitat:

Dry, scrubby woodland.

Distribution:

Vernonia proctorii is known to occur only on the summit of Cerro Mariquita in the Sierra Berrneja of southwestern Puerto Rico at elevations between 270 and 300 meters. Plants are scattered throughout a scrub woodland which covers several acres. The population has been estimated at approximately 950 individual plants at this one known location. (Federal Register 1993.)

States & Provinces:

Proctor's Ironweed can be found in Puerto Rico

Which CPC Partners conserve Proctor's Ironweed (Lepidaploa proctorii)?

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

  • 01/01/2010

major highway (100) completed to Mayaguez land cleared for grazing and quarrying suburbs are likely to be built competition from introduced grasses

  • 01/01/2010

ca. 950 individuals at 1 site

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Nomenclature
Taxon Lepidaploa proctorii
Authority (Urbatsch) H. Rob.
Family Asteraceae
CPC Number 13082
ITIS 780409
USDA VEPR
Common Names Proctor's Ironweed
Associated Scientific Names Lepidaploa proctorii | Vernonia proctorii | Vernonia proctori
Distribution Vernonia proctorii is known to occur only on the summit of Cerro Mariquita in the Sierra Berrneja of southwestern Puerto Rico at elevations between 270 and 300 meters. Plants are scattered throughout a scrub woodland which covers several acres. The population has been estimated at approximately 950 individual plants at this one known location. (Federal Register 1993.)
State Rank
State State Rank
Puerto Rico
Ecological Relationships

‚ÄčThis species is threatened by intense agricultural (cattle and goat grazing), rural and tourist developmen

Photos

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