Corispermum nitidum

Kitaibel ex Schultes

Oestr. Fl. ed. 2, 1: 7. 1814.

Common names: Slender bugseed shiny bugseed
IntroducedIllustrated
Treatment appears in FNA Volume 4. Treatment on page 320. Mentioned on page 313, 314, 316, 321.

Plants branched from base (rarely slightly above base), 10–55 (–70) cm, glabrous or sparsely covered with dendroid or stellate hairs (then often becoming glabrous). Leaf-blades narrowly linear or filiform (rarely linear), usually convolute or folded (especially in mature and/or dry plants), rarely plane (when young), 2–4 (–5) × 0.1–0.2 cm. Inflorescences lax, usually interrupted from base to apex, rarely slightly condensed (only at apex when immature), narrowly linear or linear. Bracts narrowly ovatelanceolate, lanceolate, linear-lanceolate, or linear, 0.5–1.5 (–2) × 0.1–0.3 (–0.4) cm, (most bracts within inflorescence rather uniform, usually narrower than mature fruits). Perianth segments 1–3. Fruits straw colored (yellowish-brown), light-brown, deep olive green, occasionally tinged with red, without spots and warts, convex abaxially, plane or slightly concave adaxially, obovate or broadly elliptic, often broadest near middle (rarely slightly above), 2.3–3.3 (–3.5) × (1.8–) 2–2.8 mm, shiny; wing translucent, thin, usually 0.1–0.3 mm wide, margins entire, apex rounded.


Phenology: Flowering late summer–early fall.
Habitat: Sand dunes, sandy and gravely shores, waste places

Distribution

Introduced; Supposedly, se Europe (with small extension into w Asia)

Discussion

Specimens of Corispermum nitidum superficially similar to, or almost indistinguishable from, European C. nitidum in their habit (especially when immature) are fairly common in North American collections. Judging from their fruit morphology, they mostly belong to C. americanum (or probably to introgressive hybrids between the introduced C. nitidum and native C. americanum). I have not seen any unquestionably reliable specimens of C. nitidum sensu stricto from North America. More detailed comparative experimental and field studies are needed in order to clarify the complicated taxonomy of the group in North America.

Selected References

None.

Lower Taxa

None.

"broadest" is not a number.

... more about "Corispermum nitidum"
orbiculate +, elliptic +, obovate +, ovate +, lenticular +, , +, concave +, plane +  and convex to almost +
verrucose +
Sergei L. Mosyakin +
Kitaibel ex Schultes +
slippery +
aromatic +
small whitish +
convolute +, flat +, filiform +, linear +, linear-lanceolate +  and lanceolate +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
persistent +  and deciduous +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 1.5 cm15 mm <br />0.015 m <br /> (?) +
linear +, linear-lanceolate +, lanceolate +  and ovatelanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
reddish-brown +, black +, brown +  and green +
Slender bugseed +  and shiny bugseed +
Supposedly +  and se Europe (with small extension into w Asia) +
horseshoe--shaped +
symmetric +, or +  and uniseriate +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
tinged with red +, olive green +, light-brown +  and straw colored +
2.3mm;3.3mm +
elliptic +, obovate +, , +, concave +, plane +  and convex +
Sand dunes, sandy and gravely shores, waste places +
condensed +  and interrupted +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
wingless +  and winged +
erose-denticulate +, undulate +  and entire +
0.2 cm2 mm <br />0.002 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
nonadherent +  and adherent +
accrescent +
papery +  and chartaceous +
Flowering late summer–early fall. +
not accrescent +  and small +
Oestr. Fl. ed. +
pointing +  and ascending +
basal +, median +  and position +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
characteristic +
verrucate +  and striate +
rounded +  and flattened +
Introduced +  and Illustrated +
cylindric +
1 (?) +  and 3 (?) +
not armed +, not jointed +  and branched +
opposite +  and alternate +
ascending +  and erect +
not fleshy +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Corispermum nitidum +
Corispermum +
species +
sparsely covered with dendroid or stellate hairs +  and glabrous +
polygamous +, dioecious +  and monoecious +
0.1mm;0.3mm +