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aubépine scabride, rough hawthorn, scabrous hawthorn

Habit Shrubs, 30–50 dm. Shrubs, 30–60 dm.
Stems

twigs: new growth reddish early, glabrous, 1-year old deep tan, 2-years old tan to deep reddish brown, older dull gray;

thorns on twigs at 1-year old shiny, dark brown to nearly black, stout or slender, 4–6 cm.

twigs ± straight, new growth reddish young, ± appressed-pubescent, 1-year old ± shiny tan, older gray;

thorns on twigs straight to slightly recurved, 2-years old shiny, dark brown or blackish, older gray, ± fine, 2–5 cm.

Leaves

petiole slender, length 40–60% blade, sparsely pubescent or glabrous, eglandular or sessile-glandular;

blade short-ovate to ovate, broadly elliptic to narrowly rhombic, or ± trullate, 3–8 cm, base rounded to cuneate, lobes 3–5 per side, margins serrate, veins 5–7(or 8) per side, apex acute, abaxial surface glabrous, adaxial sparsely to densely appressed-pubescent young, glabrescent.

petiole slender, length 25–40% blade, sparsely pubescent (more in adaxial groove), sometimes stipitate-glandular;

blade ovate to obovate or rhombic-ovate, 2.5–4(–5) cm, thin, base cuneate to broadly cuneate, lobes 0 or 1–3 per side, sometimes little more than apiculi, sinuses shallow, margins serrate, teeth gland-tipped basally, glands sometimes stipitate, veins 5 or 6(or 7) per side, apex acute, abaxial surface glabrous, adaxial appressed-scabrous young, glabrescent.

Inflorescences

6–10-flowered;

branches glabrous or villous.

3–7-flowered;

branches appressed-scabrous;

bracteoles caducous, few, linear, margins glandular.

Flowers

15–18 mm diam.;

hypanthium glabrous or pubescent;

sepals narrowly triangular, margins subentire or glandular-serrate;

stamens 7 or 8(–10), anthers pink;

styles 3 or 4.

15–16 mm diam.;

hypanthium appressed-scabrous, at least proximally;

sepals narrowly triangular, 4–5 mm, margins glandular-serrate;

stamens 10 or 20, anthers cream or pink;

styles 3 or 4.

Pomes

reddish or orange-red, suborbicular, 6–9 mm diam., pruinose, glabrous or slightly pubescent;

sepals spreading to ± erose;

pyrenes 2–4, sides often pitted.

red, suborbicular or slightly pyriform, 9–12 mm diam., indumentum not recorded;

sepals reflexed;

pyrenes 3–5.

2n

= 51.

Crataegus scabrida

Crataegus frugiferens

Phenology Flowering Apr; fruiting Sep–Oct.
Habitat Open woodlands, woodland edges, brush
Elevation 50–200 m (200–700 ft)
Distribution
from FNA
CT; MA; ME; MI; NH; NY; VA; VT; WI; NB; NS; ON; QC
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; GA; MS
Discussion

Varieties 4 (4 in the flora).

Crataegus scabrida is variable in leaf shape and size, as well as in pubescence of adaxial leaf surfaces and pedicels. The species falls into four reasonably well-marked varieties, only the first two of which are frequent. The range of the species as a whole is somewhat poorly documented because of frequent incorrect identification.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

The main range of Crataegus frugiferens is north-central Alabama and adjacent Georgia; in the center of its range, the species is locally common.

Crataegus frugiferens is one of the more distinct species of ser. Apricae, even to being superficially similar to C. collina, from which it differs in its glandular, often stipitately so, petioles and leaf bases as well as leaf shape, which is proportionately wider, and with much more broadly cuneate bases. The species also has more strongly glandular-serrate sepals and, usually, deeper red, softer pomes than most in the series. The leaves at flowering are no larger than the flowers, as is common in C. collina. Its thin leaves make it less xeromorphic than other members of the series. Specimens of it have been annotated as C. rigens Beadle. It is possible that its true affinity lies with C. aemula (ser. Populneae), from which it differs by smaller (2.5–4 cm) leaves of a proportionately wider (± ovate) shape with rounded to broadly cuneate bases, finer marginal teeth, and 0–3 obscure lobes per side.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Inflorescence branches glabrous
→ 2
1. Inflorescence branches villous
→ 3
2. Leaf blades ovate to narrowly rhombic, 4–7 cm.
var. scabrida
2. Leaf blades broadly elliptic, 3–5 cm.
var. cyclophylla
3. Leaf blades trullate or broadly trullate, 5–8 cm.
var. asperifolia
3. Leaf blades short-ovate to broadly elliptic, 4 cm.
var. egglestonii
Source FNA vol. 9, p. 523. FNA vol. 9, p. 616.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Macracanthae > ser. Anomalae Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Apricae
Sibling taxa
C. aemula, C. aestivalis, C. alabamensis, C. alleghaniensis, C. annosa, C. aprica, C. aquacervensis, C. ashei, C. atrovirens, C. attrita, C. austromontana, C. beata, C. berberifolia, C. biltmoreana, C. brachyacantha, C. brainerdii, C. brazoria, C. brittonii, C. buckleyi, C. calpodendron, C. castlegarensis, C. chrysocarpa, C. coccinea, C. coccinioides, C. cognata, C. collina, C. colonica, C. communis, C. compacta, C. condigna, C. craytonii, C. crocea, C. crus-galli, C. cupressocollina, C. delawarensis, C. dispar, C. dodgei, C. douglasii, C. egens, C. egregia, C. enderbyensis, C. erythropoda, C. exilis, C. eximia, C. extraria, C. fecunda, C. flabellata, C. flava, C. florens, C. floridana, C. florifera, C. fluviatilis, C. formosa, C. frugiferens, C. furtiva, C. gattingeri, C. gaylussacia, C. gilva, C. greggiana, C. harbisonii, C. holmesiana, C. ignava, C. incilis, C. integra, C. intricata, C. invicta, C. iracunda, C. irrasa, C. jesupii, C. jonesiae, C. lacrimata, C. laevigata, C. lanata, C. lancei, C. lanuginosa, C. lassa, C. laurentiana, C. leonensis, C. lepida, C. levis, C. lumaria, C. macracantha, C. macrosperma, C. magniflora, C. margarettae, C. marshallii, C. mendosa, C. meridiana, C. mira, C. mollis, C. monogyna, C. munda, C. nananixonii, C. neobushii, C. nitida, C. oakesiana, C. okanaganensis, C. okennonii, C. opaca, C. opima, C. orbicularis, C. ouachitensis, C. padifolia, C. pennsylvanica, C. persimilis, C. pexa, C. phaenopyrum, C. phippsii, C. pinetorum, C. populnea, C. prona, C. pruinosa, C. pulcherrima, C. punctata, C. purpurella, C. quaesita, C. reverchonii, C. rivularis, C. rivuloadamensis, C. rivulopugnensis, C. roribacca, C. rubella, C. rubribracteolata, C. saligna, C. sargentii, C. schizophylla, C. schuettei, C. segnis, C. senta, C. sheila-phippsiae, C. sheridana, C. shuswapensis, C. sororia, C. spathulata, C. spes-aestatum, C. stolonifera, C. stonei, C. submollis, C. suborbiculata, C. succulenta, C. tecta, C. teres, C. texana, C. tracyi, C. triflora, C. turnerorum, C. uniflora, C. ursopedensis, C. venusta, C. viridis, C. visenda, C. wattiana, C. williamsii, C. wootoniana, C. ×atrorubens, C. ×bicknellii, C. ×coleae, C. ×collicola, C. ×disperma, C. ×dispessa, C. ×fretalis, C. ×incaedua, C. ×kelloggii, C. ×latebrosa, C. ×lucorum, C. ×rufula, C. ×sicca, C. ×vailiae
C. aemula, C. aestivalis, C. alabamensis, C. alleghaniensis, C. annosa, C. aprica, C. aquacervensis, C. ashei, C. atrovirens, C. attrita, C. austromontana, C. beata, C. berberifolia, C. biltmoreana, C. brachyacantha, C. brainerdii, C. brazoria, C. brittonii, C. buckleyi, C. calpodendron, C. castlegarensis, C. chrysocarpa, C. coccinea, C. coccinioides, C. cognata, C. collina, C. colonica, C. communis, C. compacta, C. condigna, C. craytonii, C. crocea, C. crus-galli, C. cupressocollina, C. delawarensis, C. dispar, C. dodgei, C. douglasii, C. egens, C. egregia, C. enderbyensis, C. erythropoda, C. exilis, C. eximia, C. extraria, C. fecunda, C. flabellata, C. flava, C. florens, C. floridana, C. florifera, C. fluviatilis, C. formosa, C. furtiva, C. gattingeri, C. gaylussacia, C. gilva, C. greggiana, C. harbisonii, C. holmesiana, C. ignava, C. incilis, C. integra, C. intricata, C. invicta, C. iracunda, C. irrasa, C. jesupii, C. jonesiae, C. lacrimata, C. laevigata, C. lanata, C. lancei, C. lanuginosa, C. lassa, C. laurentiana, C. leonensis, C. lepida, C. levis, C. lumaria, C. macracantha, C. macrosperma, C. magniflora, C. margarettae, C. marshallii, C. mendosa, C. meridiana, C. mira, C. mollis, C. monogyna, C. munda, C. nananixonii, C. neobushii, C. nitida, C. oakesiana, C. okanaganensis, C. okennonii, C. opaca, C. opima, C. orbicularis, C. ouachitensis, C. padifolia, C. pennsylvanica, C. persimilis, C. pexa, C. phaenopyrum, C. phippsii, C. pinetorum, C. populnea, C. prona, C. pruinosa, C. pulcherrima, C. punctata, C. purpurella, C. quaesita, C. reverchonii, C. rivularis, C. rivuloadamensis, C. rivulopugnensis, C. roribacca, C. rubella, C. rubribracteolata, C. saligna, C. sargentii, C. scabrida, C. schizophylla, C. schuettei, C. segnis, C. senta, C. sheila-phippsiae, C. sheridana, C. shuswapensis, C. sororia, C. spathulata, C. spes-aestatum, C. stolonifera, C. stonei, C. submollis, C. suborbiculata, C. succulenta, C. tecta, C. teres, C. texana, C. tracyi, C. triflora, C. turnerorum, C. uniflora, C. ursopedensis, C. venusta, C. viridis, C. visenda, C. wattiana, C. williamsii, C. wootoniana, C. ×atrorubens, C. ×bicknellii, C. ×coleae, C. ×collicola, C. ×disperma, C. ×dispessa, C. ×fretalis, C. ×incaedua, C. ×kelloggii, C. ×latebrosa, C. ×lucorum, C. ×rufula, C. ×sicca, C. ×vailiae
Subordinate taxa
C. scabrida var. asperifolia, C. scabrida var. cyclophylla, C. scabrida var. egglestonii, C. scabrida var. scabrida
Synonyms C. brainerdii var. scabrida
Name authority Sargent: Rhodora 3: 29. (1901) Beadle: Biltmore Bot. Stud. 1: 30. (1901)
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