Hydatica petiolaris

Family (Traditional)Saxifragaceae
Species:Hydatica petiolaris (Raf.) Small
Common NameMichauxs Saxifrage
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Region of Origin: North America; Reproductive Phenology: April; Reproductive Phenology: May; Reproductive Phenology: June; Leaf Arrangement: basal; Leaf Complexity: simple; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaflet Number: 0; Base Flower Color: White; Fruit Dehiscence: Yes; Fruit Type: Capsule; Fruit Type: Follicle; Fruit Wet/Dry: Dry; Overall Flower Symmetry: Actinomorphic; Petal Number: 5; Sporangium Arrangement: N/A
C value 10
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

  • State Boundaries
  • Counties
  • Counties - Species Present
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim


No synonyms exist for this species.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Letcher (KY), Carter (TN), Johnson (TN), Monroe (TN), Polk (TN)

Herbaria represented by specimen data listed below: APSC, ETSU, TENN

Range of years during which specimens were collected: -

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
APSC0041958 Carter Tennessee
Hydatica petiolaris
ETSU035452 Carter Tennessee
Hydatica petiolaris
APSC0041960 Johnson Tennessee
Hydatica petiolaris
APSC0115276 Letcher Kentucky
Hydatica petiolaris
APSC0056121 Polk Tennessee
Hydatica petiolaris
ETSU035451 Carter Tennessee
Hydatica petiolaris
TENN-V-0110681 Monroe Tennessee
Hydatica petiolaris
First Page Previous Page Next Page Last Page
Records per Page:

Plant Photos

Hydatica petiolaris - Ashley B. Morris
Hydatica petiolaris - Ashley B. Morris
Hydatica petiolaris - Ashley B. Morris
Hydatica petiolaris - Ashley B. Morris