Lotus krylovii
Lotus subbiflorus
krylov's bird's-foot trefoil, krylov's trefoil
hairy bird's-foot trefoil
erect or decumbent, solid, not succulent.
erect to decumbent, solid, not succulent.
8–16 mm;
rachis 1.5–5 mm;
leaflet blades: basal 2 obliquely ovate, terminal 3 obovate to obovate-elliptic or obovate-lanceolate, 5–15 × 1–4 mm, length 3.2–5 times width, apex rounded to ± acute.
8–15[–25] mm;
rachis 2–4 mm;
leaflet blades: basal 2 ovate, terminal 3 obovate to oblong or lanceolate, 5–10[–20] × 1–5.5[–8] mm, length 2–4 times width, apex acute to obtuse, often mucronate.
1(or 2[–4]-flowered;
bracts 1–3-foliolate.
(1 or)2–4(–6)-flowered;
bracts 3-foliolate.
ascending, 1–4.5(–6) cm.
ascending to declined, 0.7–3[–15] cm.
7–9.2[–10] mm;
calyx 4–6 mm, lobes erect in bud, triangular to deltate-acuminate, (1.5–)2–2.8[–3.5] mm, ± equaling tube, tube glabrate;
petals light yellow, ± pink-tinged abaxially, turning pinkish or red, 6.6–8.5 mm, wings equaling keel.
5.5–7[–10] mm;
calyx 3.3–4.7 mm, lobes not recurved in bud, linear, 2.5–3.2 mm, longer than tube, tube hirsute;
petals yellow, turning reddish, 5–6.7[–10] mm, wings shorter than angled and beaked keel.
brown, cylindric, 15–25[–35] × 2–3 mm, not septate.
brown, cylindric, 7–10 × 0.7–1.2 mm, not or partially septate.
6–10[–30], brown, finely mottled, globose, 0.8–1.4 mm, smooth.
8–10, brown to greenish brown, ± mottled, globose to round-oblong, 1 mm, smooth.
= 12.
= 12, 24 (Europe).
Lotus krylovii
Lotus subbiflorus
Lotus krylovii is known in the flora area only from the the Okanagan Valley of British Columbia, near White Lake. I. I. Zandstra and W. F. Grant (1968) reported it in their study of Lotus in Canada, and it is still extant there.
S. I. Ali (1977) synonymized this species with an expanded Lotus corniculatus var. tenuifolius Linnaeus (synonym of L. tenuis), but the taxa are distinct in morphology, distribution, and ecology.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Lotus subbiflorus is easily distinguished by its very hirsute foliage and its sharply angled, beaked keel that is longer than the wings.
The introduced Lotus subbiflorus was collected first in 2009 at four locations in Curry County. The taxon is introduced elsewhere in the world, reported under the names L. hispidus, L. subbiflorus, or L. suaevolens (R. P. Randall 2002); when plotted worldwide, reports of L. hispidus and L. subbiflorus have similar overall distributions. Thus, it seems that in areas outside the native range, only a single entity is present that should be called L. subbiflorus.
The name Lotus hispidus Desfontaines (1804) was considered an invalid name by T. E. Kramina (2006). Kramina, however, appears to have been unaware of the subsequent validation of the name by de Candolle: L. hispidus Desfontaines ex de Candolle in J. Lamarck and A. P. de Candolle, Fl. Franç. ed. 3, 4: 556. 17 Sep 1805. The exact publication date of the name L. subbiflorus by Lagasca, however, is not known, but it may have been late in 1805 because Varied. Ci. 2(4) has 6 numbers (19–24) that were issued in 1805, and the name was published in number 22. Without an exact date for that publication, it is not possible to decide which name has priority, and currently the name L. subbiflorus is adopted for the species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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