Flora of North America species comparison

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Cardamine dissecta

forkleaf toothwort
Habit Perennials; glabrous throughout.
Rhizomes

(tuberiform, fragile), moniliform, segments oblong, 3–5 mm diam., (fleshy).
Stems

erect, unbranched, 1–3.5 dm.
Rhizomal leaves

palmately compound (biternate), 7–20 cm, leaflets petiolulate;

petiole 4–13 cm;

lateral leaflets similar to terminal, blade sometimes smaller;

terminal leaflet (petiolule 1–3(–4) cm), blade ternately or pinnately lobed, (distal segment) linear, 0.7–3.5 cm × 0.6–3 mm, base attenuate to cuneate, margins entire (apiculate).
Cauline leaves

(2 or) 3, palmately compound (biternate, similar to rhizomal leaves, alternate to subopposite), petiolate, leaflets petiolulate;

petiole (0.5–)1–4(–5.5) cm, base not auriculate;

lateral leaflets similar to terminal;

terminal leaflet (petiolule (0.3–)0.7–1.5(–2.5) cm), blade (ternate, distal segment) linear, (0.4–)1.5–5(–6.5) cm × 0.7–4(–6) mm, base cuneate to attenuate, margins entire.
Racemes

ebracteate.
Flowers

sepals oblong, 4–6 × 1.5–2 mm, lateral pair not saccate basally;

petals white to pale pink, oblanceolate, 9–15 × 2–4 mm, (not clawed, apex rounded);

filaments: median pairs 6–7.5 mm, lateral pair 3–5 mm;

anthers linear, 1.5–2.5 mm.
Fruiting pedicels

ascending to divaricate, 10–25(–35) mm.
Fruits

linear-lanceolate, 2–3.5 cm × 1.5–2 mm;

ovules 10–14 per ovary;

style 4–7(–10) mm.
Seeds

brown, oblong, 1.5–2.5 × 1–1.5 mm.
2n

= 64, 112.

Cardamine dissecta
Phenology Flowering Mar–May.
Habitat Oak-hickory woods, moist loamy areas, floodplain woods, bluffs, rocky calcareous woods, limestone slopes, along streams
Elevation 0-300 m (0-1000 ft)
Distribution
from FNA
AL; GA; IN; KY; NC; OH; TN
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 7, p. 473.
Parent taxa Brassicaceae > tribe Cardamineae > Cardamine
Sibling taxa
C. angulata, C. angustata, C. bellidifolia, C. blaisdellii, C. breweri, C. bulbosa, C. californica, C. clematitis, C. concatenata, C. constancei, C. cordifolia, C. digitata, C. diphylla, C. douglassii, C. flagellifera, C. flexuosa, C. hirsuta, C. holmgrenii, C. impatiens, C. longii, C. macrocarpa, C. maxima, C. micranthera, C. microphylla, C. nuttallii, C. nymanii, C. occidentalis, C. oligosperma, C. pachystigma, C. parviflora, C. pattersonii, C. penduliflora, C. pensylvanica, C. pratensis, C. purpurea, C. rotundifolia, C. rupicola, C. umbellata
Synonyms Dentaria dissecta, C. angustata var. multifida, C. laciniata subsp. multifida, Dentaria furcata, Dentaria heterophylla var. multifida, Dentaria laciniata var. multifida, Dentaria multifida
Name authority (Leavenworth) Al-Shehbaz: J. Arnold Arbor. 69: 82. (1988)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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