Taxon ID:
Usage Facet: class=edible; edible_score=2.0; ornamental_score=0.0; inferred_from_taxon=no
Relationships: 0 | Linked Entities (visible): 0 | Evidence claims: 9 | History events: 0 | Catalog issue offerings: 0
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Evidence Badge: emerging | claims=9 | sources=1 | contradictions=0
Claim Types: breeding_cross:1, release_year_reference:1 | Open evidence summary JSON | Open citation drawer JSON
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S. D. Bison is a South Dakota crabapple selection from 1933 from Jonathan apple x Sylvia crab. Hansen describes that cross as one half Jonathan, one fourth Siberian crab, and one fourth Yellow Transparent apple. This places S. D. Bison among the larger, better quality apple-crab types, not just a small ornamental crab. [S1]
The cultivar was first called Bison, then renamed South Dakota Bison to distinguish it from a Canadian apple seedling with the same name. The bulletin places it in the South Dakota Experiment Station's hardy fruit breeding work for the Northwest and northern plains. [S1]
The fruit is described as large, red, and of excellent quality. Hansen adds that under orchard conditions it may prove almost apple sized. This suggests an effort to breed a more substantial dessert or utility fruit from crabapple stock. [S1]
The tree is described as a heavy bearer. This packet gives no ripening season, storage life, or disease notes. Hardiness is implied by its inclusion in a South Dakota hardy fruit bulletin for the Northwest, but there is no direct zone or winter survival statement here. [S1]
Summary source basis
This summary currently draws chiefly from New Hardy Fruits for the Northwest.
Featured source descriptions
“The name was first Bison but is now changed to South Dakota Bison to distinguish it from a Canadian apple seedling.”
— [1]
“South Dakota selection indicated by the S. D. prefix.”
— [1]
“Listed in the table of contents under "IMPROVING THE SIBERIAN CRABAPPLE" with entry page 10.”
— [1]
“The fruit is large and of excellent quality.”
— [1]
Direct parent cultivars
Parentage claim text
Derived or downstream cultivar links
Source-story quotations
Taxonomy context: No family-tree context surfaced yet.
Related cultivars mentioned in source context
Zone assertions are structured rows. Hardiness claim text appears in evidence claims and page-linked citations.
| Zone Min | Zone Max | Zone Text | Assertion Type | Outcome | Location | Confidence |
|---|---|---|---|---|---|---|
| No explicit zone assertion rows yet. | ||||||
No linked media assets.
| Document | Title/URL | Rights | Claims | Relationships | History Events | Pages | Snippets |
|---|---|---|---|---|---|---|---|
| 1 | New Hardy Fruits for the Northwest | unknown | 9 | 0 | 0 | p11 | {"cultivar_name":"S. D. Bison","year":1933,"heading_raw":"S. D. B1soN","locations":[],"crosses":["Jonathan apple x Sylvia crab"],"fruit_size_mentions":[],"color_mentions":["yellow","red"],"morphology_terms":[],"pedigree_ |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 1 | p11 | verbatim_quote | Under orchard conditions this may turn out to be almost an apple in size | Under orchard conditions this may turn out to be almost an apple in size | normalized_exact:1.00 |
| 1 | p11 | verbatim_quote | The tree is a heavy bearer | The tree is a heavy bearer | normalized_exact:1.00 |
| 1 | p11 | verbatim_quote | The fruit is large, red, and of excellent quality | The fruit is large, red, and of excellent quality | normalized_exact:1.00 |
| 1 | p11 | verbatim_quote | The name was first Bison but is now changed to South Dakota Bison to distinguish it from a Canadian apple seedling | The name was first Bison but is now changed to South Dakota Bison to distinguish it from a Canadian apple seedling | normalized_exact:1.00 |
| 1 | p11 | verbatim_quote | Jonathan apple x Sylvia crab, making it onehalf Jonathan apple, one-fourth Siberian crab, Pyrus baccata, and one-fourth Yellow Transparent apple | Jonathan apple x Sylvia crab, making it onehalf Jonathan apple, one-fourth Siberian crab, Pyrus baccata, and one-fourth Yellow Transparent apple | normalized_exact:1.00 |
| 1 | p11 | verbatim_quote | B1soN crabapple-1933 | B1soN crabapple-1933 | normalized_exact:1.00 |
| Year | Nursery | Catalog Issue | Relation |
|---|---|---|---|
| No catalog issue offerings linked. | |||
| Relation | Type | ID | Label |
|---|---|---|---|
| No linked entities at this filter level. | |||
| Type | Claim | Confidence |
|---|---|---|
| structured_entry_json | {"cultivar_name":"S. D. Bison","year":1933,"heading_raw":"S. D. B1soN","locations":[],"crosses":["Jonathan apple x Sylvia crab"],"fruit_size_mentions":[],"color_mentions":["yellow","red"],"morphology_terms":[],"pedigree_ | 0.95 |
| verbatim_quote | Under orchard conditions this may turn out to be almost an apple in size | 0.97 |
| verbatim_quote | The tree is a heavy bearer | 0.97 |
| verbatim_quote | The fruit is large, red, and of excellent quality | 0.97 |
| verbatim_quote | The name was first Bison but is now changed to South Dakota Bison to distinguish it from a Canadian apple seedling | 0.97 |
| verbatim_quote | Jonathan apple x Sylvia crab, making it onehalf Jonathan apple, one-fourth Siberian crab, Pyrus baccata, and one-fourth Yellow Transparent apple | 0.97 |
| verbatim_quote | B1soN crabapple-1933 | 0.97 |
| breeding_cross | Jonathan apple x Sylvia crab | 0.90 |
| release_year_reference | 1933 | 0.92 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||