Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Pycnanthemum loomisii
FAMILY
Lamiaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
This species likely will have to be distinguished from the very similar P. incanum and P. pycnanthemoides by seed characters; this species has smooth nutlets, as opposed to rough or pitted on others. Read more at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Pycnanthemum loomisii
FAMILY
Lamiaceae
SYNONYMOUS WITH Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Pycnanthemum loomisii
INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 164-28-008?:
Pycnanthemum incanum FAMILY Lamiaceae
INCLUDED WITHIN Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Pycnanthemum pycnanthemoides var. pycnanthemoides
SYNONYMOUS WITH Gray's Manual of Botany (Fernald, 1950)
Pycnanthemum incanum var. loomisii
SYNONYMOUS WITH A study of Pycnanthemum (Labiatae) (Grant & Epling, 1943)
Pycnanthemum loomisii
COMMON NAME:
Loomis's Mountain-mint
To see larger pictures, click or hover over the thumbnails.
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JK Marlow jkm210709_1938
July Greenville County SC
Blackwell Heritage Preserve
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JK Marlow jkm210714_2209
July Greenville County SC
Blackwell Heritage Preserve
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JK Marlow jkm210714_2212
July Greenville County SC
Blackwell Heritage Preserve
Flower heads rather flat-topped, ~ 1-2" wide, subtended by whitened bracts, per Vascular Plants of North Carolina.
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JK Marlow jkm210714_2213
July Greenville County SC
Blackwell Heritage Preserve
Flowers very small, generally white with some purple spots on the lower lip, per Vascular Plants of North Carolina.
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JK Marlow jkm210714_2217
July Greenville County SC
Blackwell Heritage Preserve
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JK Marlow jkm210714_2224
July Greenville County SC
Blackwell Heritage Preserve
Calyx lobes usually tipped with a tuft of long, jointed bristles, per Weakley's Flora (2020).
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JK Marlow jkm210714_2234
July Greenville County SC
Blackwell Heritage Preserve
Calyx clearly bilabiate, lobes narrow triangular, tips acuminate to attenuate, per Weakley's Flora.
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JK Marlow jkm210714_2239
July Greenville County SC
Blackwell Heritage Preserve
Lower and mid-stem leaves distinctly paler below, canescent, per Weakley's Flora (2020).
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JK Marlow jkm210714_2244
July Greenville County SC
Blackwell Heritage Preserve
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JK Marlow jkm230809_4895
August Greenville County SC
Blackwell Heritage Preserve
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JK Marlow jkm230809_4898
August Greenville County SC
Blackwell Heritage Preserve
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JK Marlow jkm220927_0099
September Greenville County SC
Blackwell Heritage Preserve
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JK Marlow jkm220927_0100
September Greenville County SC
Blackwell Heritage Preserve
)
JK Marlow jkm211012_4241
October Greenville County SC
Blackwell Heritage Preserve
Mericarps with a smooth surface, glabrous or a few short hairs at the tip, per Weakley's Flora (2020).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Pycnanthemum loomisii
FAMILY
Lamiaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Pycnanthemum loomisii
FAMILY
Lamiaceae
SYNONYMOUS WITH
Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Pycnanthemum loomisii
INCLUDED WITHIN
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 164-28-008?:
Pycnanthemum incanum
FAMILY
Lamiaceae
INCLUDED WITHIN
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Pycnanthemum pycnanthemoides var. pycnanthemoides
SYNONYMOUS WITH
Gray's Manual of Botany (Fernald, 1950)
Pycnanthemum incanum var. loomisii
SYNONYMOUS WITH
A study of Pycnanthemum (Labiatae) (Grant & Epling, 1943)
Pycnanthemum loomisii
4459
Forb
Perennial
Habitat: forests and woodland borders, per Weakley's Flora
Native to the Carolinas & Georgia
Rare
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Opposite
FLOWER:
Summer
White to lavender
spotted with purple
Bilaterally symmetrical
5-toothed calyx
2-lipped 4-lobed corolla
4 stamens, usually exserted
Superior ovary
Bisexual
FRUIT:
Summer/Fall
Schizocarp of mericarps
TO LEARN MORE about this plant, look it up in a good book!
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".