Taxon ID:
Usage Facet: class=edible; edible_score=1.0; ornamental_score=0.0; inferred_from_taxon=no
Relationships: 1 | Linked Entities (visible): 1 | Evidence claims: 7 | History events: 0 | Catalog issue offerings: 0
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Evidence Badge: emerging | claims=7 | sources=1 | contradictions=0
Claim Types: description_snippet:3, recommendation_context:1, taxon_context:1 | Open evidence summary JSON | Open citation drawer JSON
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Shiro is a plum cited in northern breeding records as one of Burbank's hybrid Japanese plums, with a four species background recorded as (P. simonii x P. salicina) x (P. cerasifera x P. munsoniana). [S1] [S2] In the South Dakota and Minnesota material here, it appears less as a fully described orchard variety and more as an important breeding parent in hardy plum work. [S1] [S2] [S3]
The clearest direct evidence in this source set places Shiro in the parentage of Tecumseh, listed as Shiro x Surprise, and of Ojibwa, described as Shiro x Manitoba wild plum (Prunus nigra) pollen. [S1] [S3] This places it between Burbank's complex Japanese plum hybrids and prairie breeding for larger, better quality fruit under northern conditions. [S1] [S3]
These sources do not give a direct fruit description, ripening season, storage record, or tree habit for Shiro itself. Instead, they preserve its historical importance through pedigree: Shiro contributed to named northern introductions and stands in the archive as a parent cultivar behind later hardy plum selections. [S1] [S2] [S3]
Summary source basis
This summary currently draws chiefly from Pollination Studies with Stone Fruits, with 2 additional supporting sources linked below.
Featured source descriptions
“Named as a parent of Tecumseh and of Ojibwa.”
— [4]
“Shiro served as the seed parent in the pedigree of Tecumseh.”
— [4]
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 |
|---|---|---|---|---|---|---|---|
| 112 | Pollination Studies with Stone Fruits | unknown | 7 | 0 | 0 | p4 p5 | The author notes that in 16 varieties with Shiro as maternal parent, some account may need to be taken of blood pollinizers because Shiro itself is of complex origin and is rated only fair as a pollinizer.; Table 7 also |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 112 | p5 | description_snippet | The author notes that in 16 varieties with Shiro as maternal parent, some account may need to be taken of blood pollinizers because Shiro itself is of complex origin and is rated o | 16 Shiro x Eight varieties ... 4 Three varieties x Shiro | page_block:0.90 |
| 112 | p5 | entry_pedigree | Table 7 also summarizes four tested varieties derived from reciprocal crosses in which three varieties were crossed with Shiro as the male parent. | 16 Shiro x Eight varieties ... 4 Three varieties x Shiro | page_block:0.90 |
| 112 | p5 | entry_pedigree | Table 7 summarizes 16 tested varieties derived from Shiro used as the female parent with eight different male parents. | 16 Shiro x Eight varieties ... 4 Three varieties x Shiro | page_block:0.90 |
| 112 | p4 | taxon_context | Species/background appears to be listed as P. americana hybrid. | Shiro 1 Very late P. americana hybrid | page_block:0.90 |
| 112 | p4 | description_snippet | Bloom season: very late. | Shiro 1 Very late P. americana hybrid | page_block:0.90 |
| 112 | p4 | description_snippet | Pollinated 1 variety tested. | Shiro 1 Very late P. americana hybrid | page_block:0.90 |
| 112 | p4 | recommendation_context | Rated as a fair pollinizer in Table 4. | Shiro 1 Very late P. americana hybrid | page_block:0.90 |
| Year | Nursery | Catalog Issue | Relation |
|---|---|---|---|
| No catalog issue offerings linked. | |||
| Relation | Type | ID | Label |
|---|---|---|---|
| cross_parent | cultivar | 92 | Surprise |
| Type | Claim | Confidence |
|---|---|---|
| description_snippet | The author notes that in 16 varieties with Shiro as maternal parent, some account may need to be taken of blood pollinizers because Shiro itself is of complex origin and is rated only fair as a pollinizer. | 0.89 |
| entry_pedigree | Table 7 also summarizes four tested varieties derived from reciprocal crosses in which three varieties were crossed with Shiro as the male parent. | 0.90 |
| entry_pedigree | Table 7 summarizes 16 tested varieties derived from Shiro used as the female parent with eight different male parents. | 0.92 |
| taxon_context | Species/background appears to be listed as P. americana hybrid. | 0.72 |
| description_snippet | Bloom season: very late. | 0.90 |
| description_snippet | Pollinated 1 variety tested. | 0.84 |
| recommendation_context | Rated as a fair pollinizer in Table 4. | 0.96 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||