Taxon ID:
Usage Facet: class=edible; edible_score=1.0; ornamental_score=0.0; inferred_from_taxon=no
Relationships: 0 | Linked Entities (visible): 0 | Evidence claims: 10 | History events: 0 | Catalog issue offerings: 0
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Evidence Badge: emerging | claims=10 | sources=1 | contradictions=0
Claim Types: anecdote_snippet:1, fruit_color:1, recommendation_context:1, release_year_reference:1, rootstock_compatibility:1, selection_origin_reference:1, taxon_context:1 | Open evidence summary JSON | Open citation drawer JSON
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Weaver is an old American plum. It is usually treated as an Americana selection, not a named cross. It was found wild in Iowa, introduced in 1875 by Ennis & Patten of Charles City, and became widely planted in the upper Midwest. In the early experiment station period, it was still on the Minnesota State Horticultural Society's recommended list. This suggests it had practical value before newer introductions replaced it. [S3]
Sources place its origin in natural populations in Iowa. One says Mr. Weaver found it near Palo. Another places the selection along the Cedar River before 1880. [S1] [S3] The University of Minnesota bulletin describes the tree as vigorous, spreading, willowy, medium sized, and moderately productive. It says bloom came in early May, the fruit held poorly, and it ripened in late August. [S1]
The fruit is a medium plum, about 1 1/4 by 1 1/8 inches, oval, and somewhat uneven. It has yellow skin washed with red, a thin bloom, and carmine spotting. The flesh is yellow, crisp, and moderately juicy, with a free stone. Flavor and overall quality were rated only fair. [S1] South Dakota sources were more blunt. They criticized the fruit for rusty, unattractive color and poor quality, and one station note marked old trees for discard. [S3] Even so, it was important enough to be illustrated among native plums in the 1904 South Dakota crop plates. [S3]
Weaver was valued more for adaptation than for dessert quality. In South Dakota, it was reported hardy and productive in an old station orchard, and another plains source called it hardy enough to grow in any location. [S3] [S4] It was also tested on western sand cherry rootstocks, which shows it figured in hardy plum propagation work as well as orchard planting. [S2] A later Manitoba correspondence list places Weaver among northern trial plantings, though that source is less clear about how well it handled severe conditions there. [S3]
Summary source basis
This summary currently draws chiefly from Plums in South Dakota, with 2 additional supporting sources linked below.
Featured source descriptions
“Origin: selected from natural populations along Cedar River, Iowa, prior to 1880.”
— [2]
“Form: oval with unequal halves, compressed on sides; apex: slightly depressed with russeted point; cavity: large, moderately deep; suture: continuous, purple, a line.”
— [2]
“The tree has poor fruit adherence, blooms early May, and ripens late August.”
— [2]
“Stone: 5/8 x 9/16 inch, moderately plump, free.”
— [2]
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 |
|---|---|---|---|---|---|---|---|
| 17 | Plums in South Dakota | unknown | 10 | 0 | 0 | p42 | In the young Station orchard, two trees were grafted on sand cherry root and planted in the spring of 1898.; Mr. Haralson noted of the old trees: trees in fair condition; fruit rusty and of poor quality; discard.; Its un |
| Document | Page | Claim Type | Claim | Quote | Match |
|---|---|---|---|---|---|
| 17 | p42 | rootstock_compatibility | In the young Station orchard, two trees were grafted on sand cherry root and planted in the spring of 1898. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| 17 | p42 | anecdote_snippet | Mr. Haralson noted of the old trees: trees in fair condition; fruit rusty and of poor quality; discard. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| 17 | p42 | fruit_color | Its unattractive color was said to make it likely to be superseded by newer introductions. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| 17 | p42 | entry_hardiness_observation | In the old Station orchard it had proven hardy and productive. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| 17 | p42 | entry_location | In the old Station orchard, this variety was set in 1888. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| 17 | p42 | recommendation_context | The variety had been extensively planted and was still on the recommended fruit list of the Minnesota State Horticultural Society. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| 17 | p42 | release_year_reference | Introduced in 1875. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| 17 | p42 | entry_location | Introduced in 1875 by Ennis & Patten of Charles City, Iowa. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| 17 | p42 | selection_origin_reference | Found wild near Palo, Iowa, by Mr. Weaver. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| 17 | p42 | taxon_context | Listed as Americana. | Weaver, Americana. HISTORY.-Found wild near Palo, Iowa, by Mr. Weaver. | page_block:0.90 |
| Year | Nursery | Catalog Issue | Relation |
|---|---|---|---|
| No catalog issue offerings linked. | |||
| Relation | Type | ID | Label |
|---|---|---|---|
| No linked entities at this filter level. | |||
| Type | Claim | Confidence |
|---|---|---|
| rootstock_compatibility | In the young Station orchard, two trees were grafted on sand cherry root and planted in the spring of 1898. | 0.97 |
| anecdote_snippet | Mr. Haralson noted of the old trees: trees in fair condition; fruit rusty and of poor quality; discard. | 0.94 |
| fruit_color | Its unattractive color was said to make it likely to be superseded by newer introductions. | 0.95 |
| entry_hardiness_observation | In the old Station orchard it had proven hardy and productive. | 0.98 |
| entry_location | In the old Station orchard, this variety was set in 1888. | 0.97 |
| recommendation_context | The variety had been extensively planted and was still on the recommended fruit list of the Minnesota State Horticultural Society. | 0.97 |
| release_year_reference | Introduced in 1875. | 0.98 |
| entry_location | Introduced in 1875 by Ennis & Patten of Charles City, Iowa. | 0.98 |
| selection_origin_reference | Found wild near Palo, Iowa, by Mr. Weaver. | 0.98 |
| taxon_context | Listed as Americana. | 0.99 |
| ID | Type | Year | Label |
|---|---|---|---|
| No history events. | |||