Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Solidago rigidiuscula
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Narrowleaf Showy Goldenrod at Vascular Plants of North Carolina.
Inflorescence a dense panicle, with crowded ascending branches, the numerous heads not secund. S. rigidiuscula is similar to S. speciosa but is more slender, its basal leaves are withered at flowering time, and the leaves are much narrower, never exceeding 2.5cm, per The Illustrated Flora of Illinois: Asteraceae, Part 1 (Mohlenbrock, 2015).
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Solidago speciosa var. rigidiuscula
FAMILY
Asteraceae
SYNONYMOUS WITH Vascular flora of Illinois (Mohlenbrock, 2014)
Solidago rigidiuscula
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
Solidago speciosa ssp. speciosa var. rigidiuscula
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Solidago rigidiuscula
COMMON NAME:
Narrowleaf Showy Goldenrod, Slender Showy Goldenrod, Stiff-leaved Showy Goldenrod, Prairie Goldenrod
To see larger pictures, click or hover over the thumbnails.
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USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_sori4_001_lvd
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Ron Lance rwl_20230925_110834
September Jackson County NC
Big Ridge Preserve
Inf. panicle-like usually w several to many ascending branches and ovoid in outline, or axillary, per Weakley's Flora (2023).
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Ron Lance rwl_20230925_110834b
September Jackson County NC
Big Ridge Preserve
)
Ron Lance rwl_20230925_110834c
September Jackson County NC
Big Ridge Preserve
Stem leaves firm, 20+, narrowly oblong, acute, tapered to sessile base, entire, <2.5cm wide, per The Illustrated Flora of Illinois: Asteraceae, Part 1 (Mohlenbrock, 2015).
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Ron Lance rwl_20230925_110851
September Jackson County NC
Big Ridge Preserve
Mid-stem leaves 0.4-1.5 (-2.0) cm wide (vs. those of S. speciosa usually > 2cm wide), per Weakley's Flora (2023).
)
Ron Lance rwl_20230925_110851b
September Jackson County NC
Big Ridge Preserve
)
Ron Lance rwl_20230925_110851c
September Jackson County NC
Big Ridge Preserve
Leaves and upper stems glabrous, per Weakley's Flora (2023).
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Ron Lance rwl_20230925_110858
September Jackson County NC
Big Ridge Preserve
Heads not secund, in usually dense, sometimes open, elongate arrays, per Flora of North America.
)
Ron Lance rwl_20230925_110858b
September Jackson County NC
Big Ridge Preserve
Phyllaries in 3-5 series, unequal, oblong, usually obtuse, glabrous or with ciliate margins, per The Illustrated Flora of Illinois: Asteraceae, Part 1 (Mohlenbrock, 2015).
)
Ron Lance rwl_20230925_110858c
September Jackson County NC
Big Ridge Preserve
Outer phyllaries appressed, per Weakley's Flora (2023).
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Richard and Teresa Ware rtw_s_speciosa_rigidiuscu
October
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Solidago rigidiuscula
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Solidago speciosa var. rigidiuscula
FAMILY
Asteraceae
SYNONYMOUS WITH
Vascular flora of Illinois (Mohlenbrock, 2014)
Solidago rigidiuscula
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 19-20-21
Solidago speciosa ssp. speciosa var. rigidiuscula
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Solidago rigidiuscula
3861
Forb
Perennial
Habitat: limestone barrens, per Weakley's Flora
Native to Georgia & possibly the Carolinas
Rare
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Midstem leaves not 3-nerved
Leaves may be either basally disposed (basal & lower stem leaves larger and petiolate) or chiefly on the stem
Alternate (basal present or absent at flowering)
RHIZOMES? STOLONS?
Not rhizomatous
FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers pistillate & fertile
Flower heads in elongate cylindrical inflorescences or in axillary clusters
FRUIT:
Achene
TO LEARN MORE about this plant, look it up in a good book!
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