OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Saxifragales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Micranthes petiolaris var. petiolaris   FAMILY Saxifragaceae   Go to FSUS key



INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Saxifraga michauxii   FAMILY Saxifragaceae

SYNONYMOUS WITH Micranthes petiolaris var. shealyi: a new variety of Micranthes (Saxifragaceae) (Cushman, Richards, McMillan, 2020)

Micranthes petiolaris var. petiolaris

INCLUDED WITHIN Flora of North America north of Mexico, vol. 8 (2009)

Micranthes petiolaris

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)

Saxifraga michauxii

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 094-14-001:

Saxifraga michauxii   FAMILY Saxifragaceae

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)

Hydatica petiolaris

 

COMMON NAME:
Michaux's Saxifrage, Cliff Saxifrage


         To see larger pictures, click or hover over the thumbnails.

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_hype7_001_lvd

        

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm200522_5148

May    Jackson County    NC

Blue Ridge Parkway

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm100626_032

June    Avery County    NC

The Roan Highlands

The upper three petals each have two yellow spots, per Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001).

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm100626_035

June    Avery County    NC

The Roan Highlands

Leaves are coarsely serrate, obovate to oblanceolate, from 2-6" long, per Wildflowers of Tennessee (Carman, 2005).

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

Keith Bradley    kab_h_petiolaris_0754

June    Haywood County    NC

Blue Ridge Parkway

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm0307g_17

July    Greenville County    SC

Jones Gap State Park

Our only Saxifrage with bilaterally symmetric flowers, per Wildflowers of the Southern Mountains (Smith, 1998).

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm060723_104

July    Transylvania County    NC

Blue Ridge Parkway

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm060723_106

July    Transylvania County    NC

Blue Ridge Parkway

Hairy perennial with most leaves in a basal rosette, per Wildflowers of Tennessee (Carman, 2005).

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm060723_343

July    Jackson County    NC

Blue Ridge Parkway

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm0308w_04

August    Jackson County    NC

Blue Ridge Parkway

Plant from 4-20" tall with a large open inflorescence, per Wildflowers of Tennessee (Carman, 2005).

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm0311d_37

November    Jackson County    NC

Blue Ridge Parkway

Reddish-green leaves & stem and deeply toothed spatulate leaves, per Great Smoky Mountains Wildflowers (Campbell, Hutson, Sharp, & Hutson, 1962).

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm0311e_01

November    Jackson County    NC

Blue Ridge Parkway

image of Micranthes petiolaris var. petiolaris, Michaux's Saxifrage, Cliff Saxifrage

JK Marlow    jkm0311e_08

November    Jackson County    NC

Blue Ridge Parkway

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Micranthes petiolaris var. petiolaris   FAMILY Saxifragaceae

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Saxifraga michauxii   FAMILY Saxifragaceae

SYNONYMOUS WITH Micranthes petiolaris var. shealyi: a new variety of Micranthes (Saxifragaceae) (Cushman, Richards, McMillan, 2020)
Micranthes petiolaris var. petiolaris

INCLUDED WITHIN Flora of North America north of Mexico, vol. 8
Micranthes petiolaris

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)
Saxifraga michauxii

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 094-14-001:
Saxifraga michauxii   FAMILY Saxifragaceae

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)
Hydatica petiolaris

 

Find by SCIENTIFIC NAME:

1334

Forb
Perennial

Habitat: rock outcrops, especially in seasonal seepage, at low to high elevations in the Southern and Central Appalachians, per Weakley's Flora

Native to the Carolinas & Georgia

Common in Mountains, uncommon in Piedmont

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple
Basal (rarely any stem leaves)

FLOWER:
Summer
Whitish
Bilaterally symmetrical
5 sepals
5 petals
10 stamens, barely exserted
Superior ovary
Bisexual

FRUIT:
Summer
Capsule

 

TO LEARN MORE about this plant, look it up in a good book!



 


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