OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Micranthes micranthidifolia   FAMILY Saxifragaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Saxifraga micranthidifolia   FAMILY Saxifragaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 8 (2009)

Micranthes micranthidifolia

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 094-14-004:

Saxifraga micranthidifolia   FAMILY Saxifragaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Micranthes micranthidifolia

 

COMMON NAME:
Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage


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

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_mimi7_001_lvd

        

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm160323_072

March    Polk County    NC

Pearson's Falls

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm230320_1769

March    Greenville County    SC

Chestnut Ridge Heritage Preserve

Five oval, stalked petals, white with a yellow spot near the base, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm230320_1772

March    Greenville County    SC

Chestnut Ridge Heritage Preserve

Filaments strongly clavate, per Weakley's Flora (2022).

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm080420_118

April    Sevier County    TN

Great Smoky Mountains National Park

Oblanceolate, serrate leaves long-attenuate at the base, often 8" long, per Wildflowers of the Southern Mountains (Smith, 1998).

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm140418_204

April    Sevier County    TN

Great Smoky Mountains National Park

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm140418_204b

April    Sevier County    TN

Great Smoky Mountains National Park

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm150423_462

April    Sevier County    TN

Great Smoky Mountains National Park

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm150423_517

April    Sevier County    TN

Great Smoky Mountains National Park

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm150423_522

April    Sevier County    TN

Great Smoky Mountains National Park

Blades of basal leaves sharply toothed, per Wildflowers of Tennessee (Carman, 2005).

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm150423_526

April    Sevier County    TN

Great Smoky Mountains National Park

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm190427_7836

April    Jackson County    SC

Blue Ridge Parkway

The common name refers to the plant's habitat; ‘branches’ are mountain streams, per Weakley's Flora (2022).

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm190427_7843

April    Jackson County    SC

Blue Ridge Parkway

Leaf margins irregularly serrate to dentate, ciliate, per Flora of North America.

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm0405k_11b

May    Sevier County    TN

Great Smoky Mountains National Park

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm0405k_12

May    Sevier County    TN

Great Smoky Mountains National Park

Basal leaves oblanceolate to oblong, tapering to winged petiole, per Wildflowers of Tennessee (Carman, 2005).

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm160505_539

May    Jackson County    NC

image of Micranthes micranthidifolia, Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage

JK Marlow    jkm160505_543

May    Jackson County    NC

Calyx tube absent; sepals 1.5-2.5mm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Micranthes micranthidifolia   FAMILY Saxifragaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Saxifraga micranthidifolia   FAMILY Saxifragaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 8
Micranthes micranthidifolia

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 094-14-004:
Saxifraga micranthidifolia   FAMILY Saxifragaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Micranthes micranthidifolia

 

Find by SCIENTIFIC NAME:

1335

Forb
Perennial

Habitat: Wet soils of seepages, in the beds of high elevation brooks, brookbanks; rocky seepages, per Weakley's Flora

Native to the Carolinas & Georgia

Common in NC Mountains (rare elsewhere in GA-NC-SC)

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

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Simple
Basal (rarely any stem leaves)

FLOWER:
Spring/Summer
Whitish
Radially symmetrical
5 sepals
5 petals
10 exserted stamens
Bisexual

FRUIT:
Spring/Summer
Capsule

 

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



 


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