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aubépine succulente, fleshy hawthorn, succulent hawthorn

dunbar's hawthorn

Habit Shrubs or trees, 40–80 dm. Shrubs, 60 dm.
Stems

older trunks usually bearing compound thorns;

twigs: new growth reddish green, glabrous, 1-year old dark, shiny red-brown, 2–3-years old becoming dark gray, older ± paler gray;

thorns on twigs numerous, usually recurved, shiny, 1-year old dark blackish brown, stout, 3–6(–8) cm.

twigs: new growth dark orange-green tinged with red, glabrous, 1-year old bright reddish brown, older mid gray;

thorns on twigs straight to slightly recurved, 2-years old dark, shiny reddish brown, stout, 3.5–4.5 cm.

Leaves

petiole 1–2 cm, narrowly winged distally, glabrous, eglandular;

blade rhombic-elliptic to broadly rhombic-ovate or elliptic, 4–7 cm widest near middle, subcoriaceous mature (then often blue-green), base cuneate (constricted), lobes 3–5 per side, obscure to well-marked, sinuses shallow, lobe apex usually subacute to obtuse, margins serrate except proximally, veins 6–8 per side, impressed, apex acute to subacute, rarely obtuse, abaxial surface glabrous, adaxial scabrate-pubescent young.

petiole 2.5–4 cm, hairy young, glabrescent, ± densely glandular;

blade broadly ovate to deltate-ovate, 5–8 cm, subcoriaceous, base broadly rounded to subtruncate, sometimes broadly cuneate, lobes 4 or 5 per side, ± triangular, sinuses not recorded, lobe apex acute to acuminate, margins strongly serrate, veins 5 per side, apex acuminate, surfaces glabrous except adaxial ± appressed-hairy young.

Inflorescences

15–30-flowered;

branches pubescent or glabrous;

bracteoles linear, 1.7 cm, margins glandular.

5–12-flowered;

branches glabrous;

bracteoles few, margins glandular.

Flowers

12–17 mm diam.;

hypanthium glabrous or pubescent;

sepals narrowly triangular, 4–6 mm, margins glandular-serrate to glandular-laciniate, abaxially glabrous, adaxial pubescence not recorded;

stamens 20, anthers usually red or pink, rarely white, 0.5–0.7 mm;

styles 2 or 3.

16–18 mm diam.;

hypanthium glabrous;

sepals narrowly triangular, margins subentire or slightly glandular, abaxially glabrous;

stamens 20, anthers deep maroon;

styles 3 or 4.

Pomes

bright or deep red, lustrous, suborbicular, (4–)7–10(–14) mm diam., glabrous, rarely pubescent;

flesh mealy or succulent mature;

sepals spreading-reflexed;

pyrenes 2 or 3, sides pitted.

crimson, oblong to oblong-obovoid, 9–10 mm diam.;

sepals spreading;

pyrenes 4 or 5, dorsally grooved.

2n

= 51.

Crataegus succulenta

Crataegus beata

Phenology Flowering May; fruiting Sep–Oct.
Habitat Brush
Elevation 100–300 m (300–1000 ft)
Distribution
from FNA
CT; IA; IL; IN; MA; MD; ME; MI; MN; MO; NC; NH; NY; OH; PA; RI; TN; VA; VT; WI; WV; MB; ON; QC
[WildflowerSearch map]
[BONAP county map]
from FNA
MI; NY; OH; WI; ON
[BONAP county map]
Discussion

Varieties 5 (5 in the flora).

Crataegus succulenta ranges through the southern Great Lakes area to the middle St. Lawrence and southern New England, to Minnesota, to Iowa, Missouri (very rare), and Ohio, the Appalachians to North Carolina. An outlier has recently been recognized in Manitoba.

The dark twig colors of Crataegus succulenta are dramatic in winter and the coral red expanding bud scales are conspicuous in spring, more so than in most other species of hawthorn except C. macracantha. In summer, its commonly bluish green leaves, eglandular petioles, and impressed venation combine with thorn and twig characteristics to make this and C. macracantha usually instantly recognizable.

Crataegus succulenta often forms suckering thickets in the north.

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

Crataegus beata is a rare, variable taxon that here comprises all the 20-stamen forms of ser. Populneae and may be more widespread than indicated. Syntype material has resemblances to C. schuettei and C. stolonifera. The very small amount of material available to the author is characterized by tan or very dark (brownish to blackish) one-year old wood and one-year thorns, sharply dissected, narrower, C. levis-like leaves, or more shallowly incised (except in extension shoots) C. populnea-like coriaceous foliage and glandular-serrate sepals. In these, the anthers are pink to red and the pomes large, oblong-orbicular, and red. The young leaves are densely short, scabrous hairy adaxially when young.

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

Key
1. Leaf blades proportionately narrow (1.6–2:1), elliptic to rhombic-elliptic or narrowly ovate
var. neofluvialis
1. Leaf blades proportionately wide (1.3–1.6:1), ovate to broadly rhombic-ovate or broadly elliptic
→ 2
2. Pomes 4–6 mm diam.
var. pisifera
2. Pomes 7–14 mm diam
→ 3
3. Pomes 12–14 mm diam.
var. gemmosa
3. Pomes 7–10 mm diam
→ 4
4. Anthers red or pink.
var. succulenta
4. Anthers white.
var. michiganensis
Source FNA vol. 9, p. 518. FNA vol. 9, p. 570.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Macracanthae > ser. Macracanthae Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Populneae
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. 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. 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. 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. 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. succulenta var. gemmosa, C. succulenta var. michiganensis, C. succulenta var. neofluvialis, C. succulenta var. pisifera, C. succulenta var. succulenta
Name authority Schrader ex Link: Handbuch 2: 78. (1831) Sargent: Proc. Rochester Acad. Sci. 4: 97. (1903)
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