CPC Plant Profile: Navasota False Foxglove
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Plant Profile

Navasota False Foxglove (Agalinis navasotensis)

Description
  • Global Rank: G1 - Critically Imperiled
  • Legal Status: N/A
  • Family: Orobanchaceae
  • State: TX
  • Nature Serve ID: 136667
  • Date Inducted in National Collection: 12/07/2021

An annual herb from a few fibrous roots, 2.8-9.0 dm tall. Leaves are thread-like, usually 1.2-3 cm long. Flowers are lavender to rose-purple, bilaterally symetric, pikose externally, usually 1.6-2.5 cm long including flower tube and the five spreading to reflexed lobes. Collected in bloom in the fall (September to October).

Participating Institutions
Updates
Nature Serve Biotics
  • 05/02/2017

Known from one population of fewer than 500 individuals located on a sandstone outcrop in Grimes County, eastern Texas. Similar outcrops may harbor additional populations. The single known population is not protected, but there are no imminent threats known.

Dave Berkshire
  • 01/01/2010

Not Available - 1

Dave Berkshire
  • 01/01/2010

Not Available - 1

Dave Berkshire
  • 01/01/2010

Not Available - 1

Dave Berkshire
  • 01/01/2010

Not Available

Dave Berkshire
  • 01/01/2010

Not Available

Dave Berkshire
  • 01/01/2010

Not Available

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Photos
Nomenclature
Taxon Agalinis navasotensis
Authority Dubrule & Canne-Hilliker
Family Orobanchaceae
CPC Number 16066
ITIS 508045
USDA AGNA
Common Names Navasota false foxglove
Associated Scientific Names Agalinis navasotensis
Distribution Endemic to East Texas in Grimes and Tyler Counties.
State Rank
State State Rank
Texas S1
Habitat

In full sun on the shallow soil of the easternmost outcrop of the Oakville Formation (a Miocene sandstone with large amounts of shell fragments). Canne-Hilliker and Dubrule (1993) describe the outcrop as a distinct island surrounded by a sea of Post Oak Savannah, Blackland Prairie, and farmland of a river valley. The Tyler County site is on the Catahoula barrens in pine savanna.

Ecological Relationships

In Grimes County, found in areas of relatively sparse vegetation more typical of the Edwards Plateau than the immediately surrounding Post Oak Savanna & Blackland Prairie, including Physaria densiflora, Coryphantha missouriensis & Lygodesmia texana. The Tyler County site is on Catahoula barrens in pine savanna with associates including Biglowia nuttallii, A. oligophylla, A fasciculata, Liatris mucronata and Schzachyrium scoparium.

Pollinators
Common Name Name in Text Association Type Source InteractionID

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