Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Schwalbea americana
FAMILY
Orobanchaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about American Chaffseed at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Schwalbea americana
FAMILY
Scrophulariaceae
INCLUDING Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Schwalbea americana var. americana
INCLUDING Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Schwalbea americana var. australis
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 17 (2019)
Schwalbea americana
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 166-27-001:
Schwalbea americana FAMILY Scrophulariaceae
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Schwalbea australis
COMMON NAME:
American Chaffseed
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_scam_001_lvd
)
JK Marlow jkm060423_132b
April SC
Francis Marion National Forest
Leaf size decreases from the base of the stem upwards, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).
)
JK Marlow jkm0505s_30
May Williamsburg County SC
Tubular 1" flowers are born along the upper 1/2-1/3 of the stem, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).
)
JK Marlow jkm0505s_31
May Williamsburg County SC
Calyx tubular, 2-lipped, lips unequal, subtended by 2 linear bractlets, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
Patrick D. McMillan pdmsamericana_halfway
May Berkeley County SC
Francis Marion National Forest
Leaves lanceolate or elliptic-lanceolate, entire, sessile, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
Patrick D. McMillan pdmsamericana_steedfrt
May Berkeley County SC
Francis Marion National Forest
The narrow fruit is enclosed in a saclike structure, hence the common name, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Schwalbea americana
FAMILY
Orobanchaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Schwalbea americana
FAMILY
Scrophulariaceae
INCLUDING
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Schwalbea americana var. americana
INCLUDING
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Schwalbea americana var. australis
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 17
Schwalbea americana
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 166-27-001:
Schwalbea americana
FAMILY
Scrophulariaceae
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Schwalbea australis
1941
Forb
Perennial
Habitat: pine savannas, sandhill-pocosin ecotones (in the uphill portions), mesic loamy-soil slopes or swales in sandhill longleaf pine woodlands, fire-maintained interior woodlands and barrens, 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.
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
Alternate
FLOWER:
Spring/Summer
Yellowish suffused with pinkish-purple
Bilaterally symmetrical
2-lipped tubular calyx
2-lipped tubular corolla
4 included stamens (2 long, 2 short)
Superior ovary
Bisexual
FRUIT:
Summer
Capsule
TO LEARN MORE about this plant, look it up in a good book!
- Atlantic Coastal Plain Wildflowers (Nelson, 2006) p236
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p249
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p349
- Newcomb's Wildflower Guide (Newcomb, 1977) p046
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p343
- Wildflowers of the Carolina Lowcountry (Porcher, 1995) p166
- Wildflowers of the Sandhills Region (Sorrie, 2011) p085
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