Table 1 List of the species.

From: The arrangement of lateral veins along the midvein of leaves is not related to leaf phyllotaxis

Code	Species	Family	Life form
Ame	Amphicarpaea bracteata (L.) Fernald subsp. edgeworthii (Benth.) H.Ohashi var. japonica (Oliv.) H.Ohashi	Fabaceae	H(herbaceous), L(liana)
Atg	Acer ginnala Maxim. var. aidzuense (Franch.) Pax	Sapindaceae	W(woody), D(deciduous)
Auc	Aucuba japonica Thunb.	Aucubaceae	W,E(evergreen)
Bid	Bidens sp.^a	Asteraceae	H
Bpt	Betula platyphylla Sukaczev var. japonica (Miq.) H.Hara	Betulaceae	W, D
Cay	Cayratia japonica (Thunb.) Gagnep.	Vitaceae	H, L
Ces	Cerasus sargentii (Rehder) H.Ohba	Rosaceae	W, D
Coc	Cornus controversa Hemsl. ex Prain	Cornaceae	W, D
Cpa	Chenopodium album L.	Amaranthaceae	H
Cyr	Cynanchum rostellatum (Turcz.) Liede & Khanum	Apocynaceae	H, L
Elc	Eleutherococcus senticosus Maxim.	Araliaceae	W, D
Eua	Euonymus alatus (Thunb.) Siebold	Celastraceae	W, D
Fas	Fallopia sachalinensis (F.Schmidt) Ronse Decr.	Polygonaceae	H
Fms	Fraxinus mandshurica Rupr.	Oleaceae	W, D
Hyp	Hydrangea paniculata Siebold	Hydrangeaceae	W, D
Jms	Juglans mandshurica Maxim. var. sachalinensis (Komatsu) Kitam.	Juglandaceae	W, D
Jpc	Justicia procumbens L.	Acanthaceae	H
Lgo	Ligustrum obtusifolium Siebold & Zucc.	Oleaceae	W, D
Lon	Lonicera japonica Thunb.	Caprifoliaceae	W, E, L
Mkb	Magnolia kobus DC. var. borealis Sarg.	Magnoliaceae	W, D
Oeb	Oenothera biennis L.	Onagraceae	H
Pas	Paederia foetida L.	Rubiaceae	H, L
Piq	Picrasma quassioides (D.Don) Benn.	Simaroubaceae	W, D
Pps	Populus suaveolens Fisch.	Salicaceae	W, D
Qmc	Quercus crispula Blume	Fagaceae	W, D
Rhd	Rhododendron brachycarpum D.Don ex G.Don	Ericaceae	W, E
Scs	Scutellaria strigillosa Hemsl.^b	Lamiaceae	H
Sol	Solanum sp.^c	Solanaceae	H
Sym	Symphytum officinale L.^d	Boraginaceae	H
Udj	Ulmus davidiana var. japonica (Rehder) Nakai	Ulmaceae	W, D
Code	Phyllotaxis	Leaf	Types of venation ^e	Height (m)	Site ^f	L ^g	N ^h
Ame	alternate	ternate	basal actinodromous	1.1–1.9	1, 2	60	454
Atg	opposite	simple	basal actinodromousⁱ	2.9–5.0	1	15	173
Auc	opposite	simple	semicraspedodromous	1.9–2.2	7	15	223
Bid	opposite	pinnate	craspedodromous	0.5–1.2	1	15	321
Bpt	alternate	simple	craspedodromous	9.1–13.3	2	15	199
Cay	alternate	palmate	craspedodromous	0.3–1.0	7	15	179
Ces	alternate	simple	semicraspedodromous	1.7–9.3	1	15	223
Coc	alternate	simple	eucamptodromous	3.4–6.4	1	15	191
Cpa	alternate	simple	suprabasal actinodromous	1.0–2.3	2	50	234
Cyr	opposite	simple	semicraspedodromousⁱ	0.5–1.1	2, 3	15	225
Elc	alternate	palmate	semicraspedodromous	1.7–2.5	3	15	195
Eua	opposite	simple	semicraspedodromous	1.0–1.7	1	15	161
Fas	alternate	simple	semicraspedodromous	2.7–2.9	3	15	306
Fms	opposite	pinnate	semicraspedodromous	5.0–27	2	15	344
Hyp	opposite	simple	eucamptodromous	1.9–3.1	5	15	155
Jms	alternate	pinnate	craspedodromous	1.7–15	1, 2	15	522
Jpc	opposite	simple	eucamptodromous	0.4–0.6	7	50	414
Lgo	opposite	simple	brochidodromous	1.4–3.4	1	15	180
Lon	opposite	simple	semicraspedodromous	0.5–2.4	7	50	418
Mkb	alternate	simple	craspedodromous	2.8–9.6	3, 5	15	250
Oeb	alternate	simple	semicraspedodromous	1.3–1.8	2	15	354
Pas	opposite	simple	semicraspedodromous	n.a.^j	7	50	464
Code	Phyllotaxis	Leaf	Types of venation ^e	Height (m)	Site ^f	L ^g	N ^h
Piq	alternate	pinnate	semicraspedodromous	2–6	7	15	219
Pps	alternate	simple	craspedodromous	13–15	2, 3	15	161
Qmc	alternate	simple	craspedodromous	2.4–6.4	1	15	413
Rhd	alternate	simple	craspedodromous	2–3	1, 3	15	350
Scs	opposite	simple	semicraspedodromous	0.2–0.5	1	50	324
Sol	alternate	simple	semicraspedodromous	0.2–0.5	4	50	347
Sym	alternate	simple	reticulodromous	0.5–0.7	6	15	189
Udj	alternate	simple	craspedodromous	13–15	2	15	418

^aWe tentatively identified this species as Bidens frondosa, which has recently been reported as being distributed in Obihiro city⁶⁷. However, because we were unsure of the identification of this species, we identified it only to the genus level.
^bWe did not distinguish Scutellaria strigillosa from S. strigillosa var. yezoensis (synonym: S. yezoensis).
^cWe tentatively identified this species as Solanum nigrum, but because there are several species within the same genus that are difficult to distinguish from each other⁶⁸ we identified it only to the genus level.
^dWe did not distinguish Symphytum officinale from a hybrid of S. officinale and S. asperum, which may also be found in Japan⁶⁹.
^eFollowing Leaf Architecture Working Group (LAWG)³⁰.
^fSampling sites (1. The Forest of Obihiro. 2. The university. 3. The Urikari River. 4. Roadside near Obihiro station. 5. Tokachi Ecology Park. 6. The Kikankono River. 7. The Taguri River).
^gL: total number of leaves or leaflets analyzed for each species.
^hN: total number of lateral veins analyzed for each species.
ⁱThese two species (Acer and Cynanchum) had several thick veins that originated radially from the base of the leaf lamina and terminated at the tip of the lobes. Those may not have been basal primaries, if the strict definition by LAWG³⁰ is followed, because the thickest one usually accounted for less than 74% of the width of the midvein. However, because venations of maples with lobed leaves have often been classified as actinodromous, the venations of these two species were also classified as actinodromous.
^jNot available: multiple vines wound together.

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Table 1 List of the species.

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