Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Asparagales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (10/20/20):
Sisyrinchium dichotomum
FAMILY
Iridaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Sisyrinchium from the Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Sisyrinchium dichotomum
FAMILY
Iridaceae
COMMON NAME:
White Irisette, Isothermal Irisette
To see larger pictures, click or hover over the thumbnails.
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Pam Torlina pam_050709_1172
May Polk County NC
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Pam Torlina pam_052010_4069
May Polk County NC
Perianth with tepals abruptly spreading in a plane; tepals white, per Weakley's Flora.
)
Pam Torlina pam_052010_4070_1
May Polk County NC
It has several pedunculate spathes that become progressively smaller upwards, per Wildflowers of the Southern Mountains.
)
Dan Whitten sdw_white_irisette
May Greenville County SC
Chestnut Ridge Heritage Preserve
)
Pam Torlina pam_062608_321
June Polk County NC
Tepals recurved at maturity, per Weakley's Flora (2015).
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Samantha Tessel sam071221_7122434
July Greenville County SC
Chestnut Ridge Heritage Preserve
Outer tepals 3.3-7.5mm, apex apparently rounded, aristate, per Flora of North America.
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Samantha Tessel sam071221_7122435
July Greenville County SC
Chestnut Ridge Heritage Preserve
)
Samantha Tessel sam_2771
August Greenville County SC
Chestnut Ridge Heritage Preserve
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (10/20/20):
Sisyrinchium dichotomum
FAMILY
Iridaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Sisyrinchium dichotomum
FAMILY
Iridaceae
1390
Forb
Perennial
Native to the Carolinas
Rare, endemic to Henderson, Polk & Rutherford counties, NC, & Greenville Co, SC
Habitat: Dry to mesic woodlands and forests, usually over mafic rocks (such as amphibolite), at low to moderate elevations (400-1000 m) in the Blue Ridge escarpment, per Weakley's Flora
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
FLOWER:
Spring/Summer
White
Bisexual
Radially symmetrical
6 tepals
3 united stamens
Inferior ovary
FRUIT:
Summer
Capsule
TO LEARN MORE about this plant, look it up in a good book!