Linaria repens

(Linnaeus) Miller

Gard. Dict. ed. 8, Linaria no. 6. 1768.

Common names: Striped toadflax
Introduced
Basionym: Antirrhinum repens Linnaeus Sp. Pl. 2: 614. 1753
Treatment appears in FNA Volume 17. Treatment on page 31. Mentioned on page 28, 29.

Perennials, reproducing vegetatively by rhizomes. Fertile stems erect, 12–68 cm; sterile stems to 15 cm. Leaves of fertile stems: blade narrowly elliptic, oblanceolate, or linear, flat, sometimes revolute distally, 4–50 × (0.5–) 0.7–6 mm, apex acute. Racemes 1–43-flowered, dense in flower, lax in fruit; bracts linear, 2–11 (–12) × 0.3–1.5 mm. Pedicels erect, 2–5 mm in flower, 2.5–12 (–14) mm in fruit. Calyx lobes linear-lanceolate, 2.5–3.5 × 0.5–1 mm in flower, 3–4 × 0.7–1.1 mm in fruit, apex acute. Corollas white or pale lilac, 9–14 mm; tube 2–3.5 (–4) mm wide, spurs straight, 2–5 mm, much shorter than rest of corolla, abaxial lip sinus 2–2.5 (–3) mm, adaxial lip sinus 1–2.5 mm. Styles simple; stigma entire. Capsules subglobular, 3–4 × 2.8–4 mm, glabrous; loculi equal. Seeds gray or black, trigonous or ± tetrahedral, 1.2–1.8 (–2) × 0.6–1 mm, with longitudinal marginal ridges and anastomosed ridges, sometimes with tubercles, on faces; wing absent. 2n = 12 (Europe).


Phenology: Flowering Jul–Sep.
Habitat: Roadsides, railroad rights-of-way, waste places.
Elevation: 0–200 m.

Distribution

Introduced; N.B., Nfld. and Labr. (Nfld.), N.S., Maine, Mass., N.J., N.Y., w Europe

Discussion

Pre-1900 collections of Linaria repens on ballast are known from New Jersey and New York. Linaria repens is known from an old collection in Nova Scotia and was once collected from St. Pierre and Miquelon; the population did not persist.

Linaria repens is polymorphic, easily recognized by the spur much shorter than the rest of the corolla. Hybrids between it and L. vulgaris (known as L. ×sepium) are relatively common in Newfoundland (see comments under 1. L. vulgaris).

Selected References

None.

Lower Taxa

None.
... more about "Linaria repens"
erect-patent;patent +
Llorenç Sáez Goñalons +
(Linnaeus) Miller +
alternate +, opposite +, whorled +, helical +  and subopposite +
Antirrhinum repens +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (5 cm50 mm <br />0.05 m <br />) +
linear;oblanceolate;linear;oblanceolate;elliptic +
not leathery +  and fleshy +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
2.5mm;3.5mm +
linear-lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
subglobular +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
herbaceous +  and woody +
Striped toadflax +
pale lilac +  and white +
subcylindric +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Maine +, Mass. +, N.J. +, N.Y. +  and w Europe +
drupe-like +
0–200 m. +
curved +  and straight +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 +  and 4 +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Roadsides, railroad rights-of-way, waste places. +
terminal +  and axillary +
alternate +  and whorled +
persistent +  and deciduous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
connate +
linear;linear-lanceolate lanceolate ovatelanceolate or ovate +
entire +  and subentire toothed or lobed +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
5 +  and 4 +
Flowering Jul–Sep. +
Gard. Dict. ed. +
1-43-flowered +
elongate +
minute +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
black +  and gray +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
tetrahedral +  and trigonous +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
distinct +  and connate +
5-lobed +
symmetric to nearly +
Introduced +
straight +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
scale-like +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
glandular-pubescent +  and glabrous +
fertile +  and sterile +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
emarginate +, 2-lobed +, linear +, clavate +  and capitate +
Linaria repens +
species +
not gibbous +
2mm;3.5mm +
annual +  and perennial +