Just in time for the Fourth of July, the Smithsonian Institution in Washington, D.C., has rolled out a big new exhibit highlighting nature in all its glory, with specimens from across America. But the Hawaiʻi offerings are a bit of a dud.

The Smithsonian’s National Museum of Natural History is a vast repository, occupying a stately edifice on the National Mall. It holds some 148 million objects, including more than a million from Hawaiʻi, including eight priceless feathered cloaks, but when the institution’s curators picked out one item to exemplify each state for this exhibit, they gave Hawaiʻi a rock.

Yes, a rock.

Seen in person, it’s a striking black clump of glittering pāhoehoe lava, and of course we are proud of our lava, but it comes across as, well, underwhelming.

Millions of visitors are expected to arrive in Washington, D.C. in the next two weeks. Many will be drawn by the fanfare associated with the 250th anniversary of the signing of the Declaration of Independence. In the eyes of many Americans, President Trump has tainted the occasion by claiming personal sponsorship of it.

To be fair, the city is looking pretty good, decked out in its finery for the events, and some improvements have been made. Flags are flying; the lawns look green and lush. The scene is drawing large crowds of tourists from all over the world, cheerfully milling about and popping into the many free museums that line the mall.

There are also some notable exceptions: The reflecting pond by the Lincoln Memorial is definitely tainted by algae infiltration. There’s also a bit of slime attached to what was reportedly a no-bid job for the renovation work by a Trump donor.

Also to be fair here: Hawaiʻi has had difficulties with its own reflecting pool, the now-waterless water feature at the State Capitol.

Amid the ongoing partisan warfare, Hawaiʻi’s state government, along with about 10 other Democratic-controlled states, has decided not to participate in the D.C. festivities. That includes the Great American State Fair, now being set up on the National Mall, which will host some 56 themed pavilions where individual states are expected to highlight what they believe makes them special. Sprawling over 10 city blocks, crowned by a 110-foot ferris wheel, the festival will feature concerts, military flyovers, fireworks displays, movie screenings and exhibit spaces representing the nation’s states and territories.

In a statement, Erika Engle, a spokeswoman for Gov. Josh Green, said the state is not officially participating, adding that no funds had been allotted for it by the Legislature or Congress.

She added that Washington, D.C, “is 5,000 miles away.”

That’s a distance that hasn’t previously inhibited the governor, whose peregrinations to the nation’s capital have almost qualified him as a frequent flyer.

This is supposed to be a sign of how Hawaiʻi’s leaders are effectively rejecting Trump. As if Trump cares whether Hawaiʻi participates or not.

It’s a strange place to make a stand. July Fourth is bigger than any president. The signing of the Declaration of Independence represents a rare kind of bravery. The 56 signers risked their lives to sign it, knowing they would have a target on their backs, placed there by King George III, one of the world’s most powerful monarchs.

In fact, people who signed resolutions against the king in the past could expect persecution not just in this life but in the next. In England in the 1630s, the autocratic King Charles I decided to bypass the elected body and instead to rule by executive order. Discarding established law and tradition, he disbanded Parliament for 11 years.

The English people thought that was high-handed and, amid a set of bloody civil wars that killed 200,000 people, he was eventually executed. But when his son was restored to the throne in 1660, the 59 people who had signed the former king’s death warrant were themselves hunted down. Many were drawn and quartered; the lucky were imprisoned for life.

Oliver Cromwell, the Parliamentary ringleader, had already died but his corpse was exhumed and he was hanged. His body was hung in chains and his decapitated head was impaled on a pike and put on public display for 20 years. Almost 100 years later, his embalmed head was still being carted about as a gruesome trophy, even as the signers of the Declaration of Independence put pen to paper.

Back in 1776, the memory of what vengeful kings do to their enemies was high in the minds of those who were publicly protesting Charles II’s autocratic heir, George III. In fact, one of the first ships built and commissioned by the Connecticut General Assembly, launched just two weeks before the Declaration of Independence was signed, was named the Oliver Cromwell.

Democracy has had its ups and downs.

Back to the exhibit at the Smithsonian.

The goal of the curators was to reflect America’s natural diversity and how humans interact with it. In dozens of exhibits spread over 5,000 square feet, visitors can learn about the oddities and idiosyncrasies in the natural world, from rocks to birds to butterflies to snakes to fossils to plants and also how humans have incorporated these items into crafts and artistry. It touched on the problems of animal extinction and climate change.

A video graphic allows people to track bird migration routes across the continental United States.

One display explains the long history of traditional blacksmithing in Guam, another provides examples of Samoan siapo bark cloth.

In addition to several lava rocks representing Hawaiʻi, the exhibit also featured a lovely Niʻihau snail shell necklace and a goby fish from Kāneʻohe Bay, which the exhibition touted as one of the largest sheltered bodies of water in Hawaiʻi, known for its living corals.

But more striking symbols of Hawaiʻi seemed notably sparse and some obvious elements are missing. How nice it would have been to see a feathered cape or an example of one of the brightly colored lizards that have played such an important role in Hawaiian mythology. I would have liked to have seen more of Hawaiʻi’s beautiful birds and butterflies.

Another thing that appears to have gone missing are Hawaiian philanthropic donors making the case for the state’s natural splendors. The display’s list of financial sponsors shows philanthropy from both blue and red states but nothing from Hawaiʻi.

That’s partly because we are suffering another form of extinction. We have a lot fewer large companies based in Hawaiʻi than we once did, and so there are fewer corporate sponsors. Even Hawaiian Airlines, once a mainstay of exhibits like this that appeal to frequent travelers, has been subsumed into an airline from another state.

We do have more billionaires than we once did, of course, but they own estates in so many places that it is hard to know what they actually consider home.

They just better not steal our rocks.