Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Malvids: Brassicales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Borodinia missouriensis
FAMILY
Brassicaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Missouri Rockcress from the Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Arabis missouriensis
FAMILY
Brassicaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Borodinia missouriensis
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 7 (2010)
Boechera missouriensis
SYNONYMOUS WITH Transfer of most North American species of Arabis to Boechera (Al-Shehbaz, 2003)
Boechera missouriensis
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Arabis missouriensis
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 088-25-004c:
Arabis laevigata var. missouriensis FAMILY Brassicaceae
INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Arabis viridis var. viridis
COMMON NAME:
Missouri Rockcress
To see larger pictures, click or hover over the thumbnails.
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JK Marlow jkm230328_2195
March Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm230328_2197
March Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm230328_2203
March Pickens County SC
Glassy Mountain Heritage Preserve
)
Keith Bradley kab_b_missouriensis_3739
March Lancaster County SC
Forty Acre Rock Heritage Preserve
Flowers ascending at anthesis; sepals glabrous; petals white, 5-10mm, per Flora of North America.
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Keith Bradley kab_b_missouriensis_3757
March Lancaster County SC
Forty Acre Rock Heritage Preserve
Lower stem leaves lobed or dissected, basal deeply pinnately dissected, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
Keith Bradley kab_b_missouriensis_3769
March Lancaster County SC
Forty Acre Rock Heritage Preserve
)
Doug Lockard dlk20180414_6217
April Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm200425_4248
April Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm200425_4248b
April Pickens County SC
Glassy Mountain Heritage Preserve
Stem and leaves glabrous. Stem leaves more than 4x long as wide, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm200425_4253
April Pickens County SC
Glassy Mountain Heritage Preserve
A dense basal rosette of leaves is usually present at flowering time, per www.missouriplants.com (Tenaglia).
)
JK Marlow jkm200428_4371
April Pickens County SC
Glassy Mountain Heritage Preserve
Stems very leafy, leaves strongly overlapping and usually borne erect or nearly appressed, per www.missouriplants.com (Tenaglia).
)
JK Marlow jkm200428_4407
April Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm200428_4410
April Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm200428_4413
April Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm200508_4701
May Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm200508_4711
May Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm200508_4713
May Pickens County SC
Glassy Mountain Heritage Preserve
Fruits at first erect, becoming widely divergent and commonly arcuate, per Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist, 1991).
)
JK Marlow jkm230606_3793
June Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm230606_3797
June Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm230706_4271
July Pickens County SC
Glassy Mountain Heritage Preserve
Fruits ascending to divaricate-ascending, curved, edges parallel, 6-11cm × 1.5-2mm, per Flora of North America.
)
JK Marlow jkm231109_6778
November Pickens County SC
Glassy Mountain Heritage Preserve
)
JK Marlow jkm231114_6867
November Pickens County SC
Glassy Mountain Heritage Preserve
Seeds in 1 row, oblong, 1.7-2mm long (vs. A. canadensis seeds in 2 rows, orbicular, 2-2.3mm long), per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Borodinia missouriensis
FAMILY
Brassicaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Arabis missouriensis
FAMILY
Brassicaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Borodinia missouriensis
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 7
Boechera missouriensis
SYNONYMOUS WITH
Transfer of most North American species of Arabis to Boechera (Al-Shehbaz, 2003)
Boechera missouriensis
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Arabis missouriensis
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 088-25-004c:
Arabis laevigata var. missouriensis
FAMILY
Brassicaceae
INCLUDING
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Arabis viridis var. viridis
2385
Forb
Biennial/Rarely perennial
Habitat: Thin soil around outcrops of metamudstone, diabase, or granite (generally on ultramafic, mafic, or 'rich granitic' substrates), per Weakley's Flora
Native to the Carolinas & Georgia
Rare, with an odd and fragmented distribution
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Basal rosette & alternate
Stem leaves auriculate-clasping
FLOWER:
Spring
Creamy white
Radially symmetrical
4 sepals
4 petals
6 stamens tetradynamous (2 short, 4 long)
Bisexual
Inflorescence a raceme of 18-47 flowers, sometimes branched (thus a panicle?)
FRUIT:
Spring/Summer
Silique
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".